From CoyoMoose:

Kogure is a normal high-school girl who loves shoujo manga and food. She wants to fall in love, however there is one big problem - she's terrified of real guys. Then, one day, she runs into her ideal guy, and he's real!

Sae, a young lady of a wealthy family, sometimes can't control herself and gets the urge to behave in a manner unbefitting of her upbringing. It's her butler's job to intervene.

This is the original Niconico Seiga version of "Domino Kick - Naraberareta Domino o Kick Shitara Dou Naru no Kashira?" (I wonder what would happen if I kicked a line of dominoes). As opposed to the Gangan Online version, it doesn't have the subtitle and has a partially different set of chapters.

From Paradise Love Scanlations:

Although they're brothers.Their appearance, personality are completely the contrary!!
Suddenly one day, these two completely different brothers switched souls!? After possessing his cute, girly little brother's body, the hard days of the tough big brother begins.

Oneshot from NisiOisin and Kawada Yuuya:

A boy suddenly wakes up to find out he's in the body of a high School girl. Who is she and how did he switch bodies?

Collection of stories:

1-2. 16-sai, Shinkon Hajimemashita
Getting married at16th birthday? Swayed by the husband's unreasoning love?
When she was six, Sou-chan promised Wakaba that he would marry her when she turns 16. Ten years later, does Sou-chan still remember the promise he made? Can Wakaba be honest with her own feelings?
What will happen when Sou-chan's father's company goes bankrupt?

3. Akuma no Yuuwaku ni, Amaku Torokeru
Matsutani Mika wants to protect the pastry shop her father left her but lately no customer visits her shop. Can Katsuya help her?

4. Idol-sama wa Watashi ni Muchuu?!
An aspiring idol group 'Infinity three' and its manager are working hard to reach the top position when a scandal happens. Will the team break up?

5. (Sokuhou) Class no Ikemen ga Watashi no Kamikyoku ni Muchuu na Ken
Ichika lhas a passion for making Vocalo songs, but is just too shy to ask people to listen to them. One day she goes to her classroom to find the popular Iori-kun crying to her music?

N/A

Walkure Romanze's story revolves around Takahiro Mizuno, a student studying at an academy with jousting as its main focus for sport. Takahiro acts as an advisor to the riders of the sport. Takahiro goes through each day tediously until the time of the annual competition draws near. Due to some odd circumstances, his childhood friend Mio Kisaki is enrolled into the competition. As she has never even rode a horse once in her life, Takahiro senses the fear in his friend and becomes Mio's coach.

From Chibi Manga:

From the time she was a child, Makoto was always compared to her beautiful sister. So she decided to become just as awesome as her sister for her entrance in High school. But it didn't really work...

One day, she met a guy who's popular and older than her. Suddenly, Makoto can't make her heart stop beating so fast?! So now, she can't stop thinking about her school life!

Hieko and Sato-chan conduct an evening after tasks on mathematics...

After a generation of warfare, the Gundam boys finally brought peace between Earth and the colonies when they helped defeat the Oz and White Fang armies. Now, out of the rubble, the surviving soldiers are re-emerging and clustering together into new factions. Heero Yuy has become a vigilante pacifist, tracking down weapons stashes and destroying them, while Relena, former Queen of the Earth Sphere, is now trying to maintain the peace politically. But an unmanned weapons factory has been discovered somewhere near Mars, and now the Gundam boys are going to have to dust off their mechs for one more battle if peace is to stand a chance of lasting. Battlefield of Pacifists is one of the possible events that bridge the gap between the anime series and the OVA, Endless Waltz. Other manga that also present such possibilities are Blind Target and Ground Zero. Here are other titles that are related to this one: Shin Kidou Senki Gundam W (is the Main Story) Shin Kidou Senki Gundam W: Endless Waltz (is also the Main Story) Shin Kidou Senki Gundam W: Blind Target (is the Alternate Story) Shin Kidou Senki Gundam W: Ground Zero (is also the Alternate Story) ~ ming

From Day of the River:

Akane: She's beautiful and popular, lively and full of vitality; Aoi: Looks like a small animal but is actually very clever. Who knew that these two very different people were actually... twin siblings?!

Included one-shot:
Volume 2: Kashino-kun wa Mahoutsukai

The student council president is gaga over the vice president, but her feelings may or may not be returned. In the meantime, it's up to the serious and by-the-book vice president to keep the flaky (but surprisingly effective) president on track.

It was the most amazing wedding...

The Black and White arc of Pokemon Special. (Pokemon Special has several different arcs serialized in parallel in a few different magazines, so the exact numbering for the BW arc is unknown. Hence, this is registered under a completely new series)

From Dazzling Scans:

When the masculine and popular-with-the-ladies Ooji Subaru arrives at her new school, her encounter with her childhood friend Megumi and the other four “princes” of the school leads to the discovery of her past life. She is the reincarnated Prince Charming, who was a womanizer who seduced all of the princesses in the land. As a result, a jealous witch placed a curse on him and doomed him to be reincarnated as a woman for eternity. In order to break the spell, Subaru must find the “princess”—now reincarnated as men—who is her one true love!

From Yen Press:
With his carthorse as his only companion, the young merchant Kraft Lawrence slowly wends his way through dusty back roads in search of profitable trade. But this monotony screeches to a halt when, one night, he encounters a harvest goddess in the guise of a beautiful young girl…with wolf ears and a tail! Longing for the northern lands of her birth, Holo the Wisewolf joins Lawrence as he follows the ebb and flow of trade through the countryside. And when the two come across a compelling but suspicious opportunity for profit, will Lawrence with his mercantile chops and Holo with her ancient instincts be able to separate the truth from the lies — and make some coin while they’re at it?

spin off from the famous manga Negima with negi as the older character and teaching a kindergarden class

The four-panel manga follows the everyday life of Mayu Morita, a girl who is exceedingly gentle and thoughtful, to the point that she does not say much of anything to anyone in high school.

The daily hardships of Hikage Miyakawa, a young girl who lives with her sister Hinata. Due to Hinata´s otaku impulsiveness to constantly buy merchandise, the two girls struggle everyday to have something decent to eat.

From Chibi Manga: A story about an energetic girl and tendency boy!