Collection of tales of love between warriors. Good, solid artwork, if not the best available. Plenty of hard yaoi to go around here, too, if that's your bag.
If samurai themes appeal to you, this manga probably will, too.
by Shayne

The first oneshot, Hana Nite Sourou was scanlated by Atlantis-Dream.

From Bliss:

Arthur and Laurent were childhood friends that grew up together, but they had the difference of a noble and servant status. As they grew older, they came to understand the difference in their stations. Although both of them have affections for each other, such feelings could not be accepted...

English publication via Renta!

From Aerandria Scans:

In a time when there were swords with spirits dwelling in them, there was a warrior named Hisui with a “Drunken Sword.” With the emperor ordering people to gather these Spirit Swords for him, Hisui spends his every day fighting assassins sent by the emperor and freelance Spirit Swords Hunters who simply want the reward money, all the while protecting his beloved childhood friend, Shirei. However, Shirei might not be what she seems to be...

The shogunate installed by the Tokugawa is abiding order, the people live in peace and in a relative prosperity.

However, the dark part of the human heart does not cease to arouse their cupidity : it is the ideal doorway for all demons that, by possessing humans, seek to pass into their world.

Exorcising these demons is Jonosuke's mission, the master of keys. Known for being the best locksmith of Edo, Jonosuke uses particular locks to put the wicked spirits under lock and key. With the help of the bewitching O-kin, a divine who uses unorthodox methods, Jonosuke is going to meet during his demon hunt some notables of his time, who will prove to be precious allies when he faces a plot aimed at the upper spheres of State.

Atop the mountain, there lived a deity with a tiger in his household. A fair maiden ventured alone... to see the deity of the mountain.

The head of a village plagued by a man-eating tiger offers his daughter Hyeon-na to any man who successfully disposes of the tiger. Dismayed at being treated as a trophy, Hyeon-na sets out alone to the mountain where the tiger lives...

From Sweet Lunacy:

Armelia is an orphan girl who sings for work. One day, she met a boy, Luce, and fell in love with him. Unfortunately, Luce was kidnapped by the notorious pirate, Scar. Armelia swore to herself that one day she would rescue Luce. But the truth is not what she thought it was...

*Includes a side story called Haru wa Sakura:

Shou wants to be a doctor, but female doctors are forbidden. Takao is a delinquent, whose bad reputation is known by many. Somehow these two people cross paths and a connection is made. Was it just a chance meeting or will something more come out of it?

From TachiNeko Guild:

Set in post-World War II Japan, this is a story of young Haruomi, an heir of the prominent Morimura family. Stripped of his aristocratic title while facing a repossession of his estate, Haruomi finds himself thrown on the mercy of a wealthy Japanese American, Tsutomu Oshio.

At first, Oshio wants nothing to do with a naïve noble. After all, he hates the Japanese above all else. Yet as the days go by, Oshio finds himself inexplicably drawn to Haruomi’s innocence. Driven by a desire to rid himself of his newfound feelings, Oshio sets it upon himself to disrupt Haruomi’s flawless façade.

Through the hope of saving his bedridden mother’s life, Haruomi accedes to Oshio’s scandalous demands to become his “servant”. Thus, Haruomi’s new life as his master’s plaything begins…

Note: It sounds like the Japanese version of this title included a separate one shot about a host club. While the version published by Enju Group does not.

From Wasurenagusa:

A shounen-ai version of the Issun-boushi story. Heikuroo is only as big as a human hand and only in the light of the moon he can gain the normal height. Because people think he is cursed, he leaves his village and goes to the capital, where he becomes a guardian of an aristocrat named Kotohira...

Hanamura Masatsugu and Takakura Kuniomi are intimate friends since childhood, and both are heirs to their respective marquises. Their favorite sport is seeing who can score the next bishounen that comes across their path in the Imperial Capital. And now Kuniomi has set his eyes on a new target…!?

Who would be the winner between these two beautiful men’s quest for love—?!

A lavish Taisho* Romanesque edition!! (*** Taisho era: 1912-1926 ***)

The successor of the Tsujimura clinic, Motoharu has always held his childhood friend, Hazumi Akira, close to his heart. He confessed to Akira and then was rejected. Even so, he still entered the same university and same department as Akira. Ever since the confession, the two have been distancing each other, but Akira suggested that they make up and for the first time in a while, they walk home together. But on the way back, Akira suddenly kisses Motoharu, causing Motoharu's hope to grow. However, the next day, Akira tells him to forget it, causing Motoharu to blame Akira...

Includes Hana no Migoro ni
A short sequel for Hana No Mizo Shiru portraying Misaki and Youichi's life after the events of the main plot.

Hellsing, an organization devoted to the elimination of the vampire threat, has recently uncovered information regarding the attempted production of "man-made" undead. The world is presently in the thick of WWII, and the current leader of Hellsing fears the Nazis could potentially use these creatures as front-line super-soldiers. Although the technology of creating artificial vampires is still in its infancy, it has advanced enough to be a serious threat. In an attempt to put a stop to this perverse and dangerous experimentation, Hellsing has sent two of its most skillful agents to Poland. A young man by the name of Walter C. Dornes - a.k.a. "The Angel of Death," and Alucard, an ancient vampire currently in forced service to the Hellsing Organization. Together, they attempt to stop the progress of the Nazi's efforts.

From Dragon Voice Project:

Setsu is a tomboy who lives in the small village Niolz and she's been participating in various Martial Arts Comepetitions in order to earn enough prize money to travel to the capital Bazen where King Lucaria resides... Luca, her childhood friend who left in order to ascend the "Scarlet chair" as the last rightful heir of the royal line. However when she finally arrives there and gets a glimpse of the King she's shocked to find a stranger in his place! What's going on? But more importantly what happened to the real Luca? Join Setsu in her quest to uncover the truth and find that precious childhood friend...

Consists of a collection of oneshots:

1) Covetous You and Insensible Me (Hoshigariana Kimi to Futsutsukana Boku)
Never one to get close to strangers, Kai finds himself helpess in the enchanting gaze of a foreigner...

2) Lost in the Darkness Before Dawn (Gyou An ni Mayou)
Tatsumi Hiroaki is a swordsman for hire during the Edo Period. Recently, a rise in bandit activity has given him a steady flow of work in protecting small shops in town. The bandits recognize his skill and offer to hire him, where he finds a familiar face from the past.

3) Confession (Kokuhaku)
Unable to forget the random act of kindness by the wealthy, but lonely business man, Matsumi offers to sell his body. Is it really just for money, or is there a greater need at stake?

4) The night he escaped death (Shi ni Zokonai no Yoru)
Prequel of Lost in the Darkness Before Dawn.

5) Sleepless Night
The Night He Escaped Death bonus.

6) Service
Confession bonus.

7) Bonds of Blood
Covetous You and Insensible Me bonus.

From BLU:
From modern-day tales of romance in Seattle, to eerie stories from historical Japan, to Yoshinaga-sensei's depiction of the class conflicts that fueled the French Revolution... In these unforgettable tales, there's a little something for every BLU fan!

And perhaps best of all, the characters Claude and Antoine (a young aristocrat and his butler) are introduced in this volume. Catch up to their later adventures in Fumi Yoshinaga's 'Lovers in the Night'!

Stories:
1. Truly Kindly
2. True Tenderness
3. A Today Completely Different From Yesterday
4. Pandora
5. Chinoiserie
6. A Butler's Proper Place
7. A Day in the Life of an Aristocrat

From Fifay.net:

The story took place after the 1st World War (the Great War) and prior to the 2nd World War. The heir of a rich viscount was falling in love with a magazine reporter. The “heir boy” died in a house fire. Seven years later, the reporter found his “dead” lover, now a high profile male prostitute. Together, they fell into the darkness of political scandals and human smugglings.

Clarissa is a daughter of an aristocrat, but after losing her parents at a young age, she spent a lonely childhood in boarding schools. And now, even her guardian uncle is gravely ill. If her uncle was to pass away, according to law she would lose all of her inheritance. To prevent this, she must marry, but her unpleasant, gold-digging cousin will not leave her alone. She decides to devise a plan and offers a proposition to a bankrupt 2nd son of an Earl; "Elope with me in return for my £10,000 inheritance!"

English publication via Renta!

A collection of debut stories:

• Kiniro Kishi
Police officer Shiro has been transferred to a small village, where his only job is to capture runaway horses or pull grandmas out of ponds.

• Kanamori Hime
Anzu is the bell guard to warn the villagers whenever the barbarians attack. But as an actual barbarian comes to the village, Anzu must learn her view of this timid people was not quite accurate, but cramped with prejudice and half-truths.

• Zakka ni Umoreta Otome (The Maiden Buried Under Novelties)
A young maiden seeks the perfect gift for the man she's fallen in love with.

1-2) Love Panic
Hoshi confesses his love to Keita, but does Keita really understand or will Hoshi have to prove his seriousness?

3-4) Aisome
Tougo is in love with his master Seijuurou. He's even willing to give up his life for him, but is that really what his master wants?

5) Renka
Banjou has been taking care of Misao (Seijuurou's younger brother) for the past 10 years. What will happen when Misao asks him to teach him about what happens after kissing?

5.5) Virgin Mini Panic
Keita is upset so Hoshi has decided to give Keita his 'Back Virginity', but is that really going to work out or will Keita be eaten instead?

A collection of debut stories:

• Kiniro Kishi
Police officer Shiro has been transferred to a small village, where his only job is to capture runaway horses or pull grandmas out of ponds.

• Kanamori Hime
Anzu is the bell guard to warn the villagers whenever the barbarians attack. But as an actual barbarian comes to the village, Anzu must learn her view of this timid people was not quite accurate, but cramped with prejudice and half-truths.

• Zakka ni Umoreta Otome (The Maiden Buried Under Novelties)
A young maiden seeks the perfect gift for the man she's fallen in love with.

From Ivyscan:

Having been born with an ability to destroy things without having to touch them, a man was abandoned by his mother when he was a child. His name long forgotten, he continues to travel aimlessly, crossing paths with those with superhuman powers along the way. These encounters are perhaps brought about by his own power.