A "Eromanga-sensei" spinoff centered around the beautiful and famous young light novel author Yamada Elf. After failed attempts at seducing her dense siscon neighbour Izumi Masamune, she tries it with cooking.

Ladies and Gentlemen, meet Yagami-san, the only one section chief you would never want to work with, unless you like the kind of stupid guy who got in the workplace by a gigantic cosmic error in the arrangement of the stars on the recruitment day.

From MangaHelpers:

There's a new wheel-chair bound student at school who has returned after an illness, and she immediately kisses Tsuzuki Ui, who she calls "Rei-kun." He soon deduces that she is a daughter of a wealthy family, and a person he once beat at an internet murder mystery game. She is apparently fixated on him, since he was the only one who ever beat her, and she has now come to see him in person. Her plan is to have a real-life murder mystery game, and her current focus is on the supposed suicide of Tsuzuki's father. For some reason, she suspects his little sister Haruka... [tethysdust]

Fang Haotian is a young boy who is deeply in love with a girl called Ningyu, but her parents are opposed to their relationship. Ningyu is arranged for marriage to another man. Can he become strong enough to take back his beloved Ningyu from this man?

A mysterious Japanese man, known only as "Zig," travels to the world's conflict areas and undertakes various jobs. When the story begins, he's working as a security guard at a bank that's suddenly taken over by terrorists.

Shion Nichigami loves reading and is extremely shy, but when she removed her glasses Shion becomes a detective called Nazotokihime.

Biting more than she can chew, Tasaki-chan approaches her crush Kirishima-kun with confidence brought from out of nowhere.

This takes a heavy toll on her... but Kirishima-kun is no dummy an certainly not made of iron!

Minato is a third year middle schooler with a girly face. He came out of the closet in front of his family and told them that he is gay...since then his mother started bringing him cute/girly things which somehow dissapointed & hurt Minato's feeling.
Living beside beach his family runs a bread & breakfast where he meets a new guest Naoki Oisaka whom he started feeling comfortable with.
This is going to be good? Just wait & see how this love story ends...

Super Dragon Ball Heroes: Dark Demon Realm Mission! is a spin-off manga.
It tells the story of the conflict between the Time Patrol and the Dark Empire.

Wei QiuYu, who just entered his 30s, has fine features and a successful career, but he is still singe? You may have already guessed the reason...

In a forced blind date, the brother who attended in his sister's place turns out to also bat for the same team? This marks the beginning of an ill-fated attraction! The cheerful puppy wolf pursues the difficult general manager. Faced with the pressure of marriage from his parents, will QiuYu be able to drop his facade and come together with his mutual love?

The story of a detective attempting to solve a mystery and a man who doesn’t know himself.

From MangaHelpers:

After the death of his parents in an accident, Yutaka was taken in and has been living peacefully at the Mita Shrine. One day, a pair of really hot miko appear, causing many nosebleeds for Yutaka. When he is drawn into their fight with a dangerous evil spirit, he uncovers the fact that he also has some kind of mysterious power inside himself as well. Now it looks like he's going to become involved with their dangerous fight against evil spirits! [tethysdust]

Lupin the Third and his motley crew return in Shin Lupin III! This time, several of the stories are either brand-new or adapted from or to the Lupin Part 2 anime, and the beginning story was even animated by itself several years later! Lupin the Third is the grandson of the famous literary thief Arsène Lupin, and his partners in crime include the sharpshooter Jigen Daisuke, the stoic samurai Goemon Ishikawa the Thirteenth, and the on-again-off-again lover/rival Fujiko Mine. Their object is to steal the most valuable and important items while evading the guard of Inspector Koichi Zenigata, the ever-vigilant ICPO chief whose life goal is to capture Lupin, but when it’s fulfilled, he’s lost his purpose! What kids of exciting adventures will they get themselves into in...Shin Lupin III!

A small collection of yuri manga by Shimizu Hikarino

Sae and Riko have been best friends since childhood. But as they grow up, Sae notices more and more the differences between them, and starts to have doubt about whether their friendship is going to last...

A seinen take on Saito's classic Survival. It tells about the drama of those who survived the fall of a meteorite on the Pacific Ocean after a failed attempt of destroying it with a missile. Cities are destroyed by big earthquakes, food runs short, illness spread quickly. In the midst of this scenario, Ootomo, the main character of this series, will do whatever in order to survive.

[Italiano]
Una giovane "cagnolina"? Di nome Yuki Raccolta dalla strada ed il suo nuovo padrone, Kosuke. Lei terrorizata dal rimanere sola e lui che non riesce a non fare a meno di viziarla...

[English]
a young "dog"?, named Yuki, Gathered from the street and her new owner, Kosuke. She terrified of being alone and he who can not help but spoil her...

A man finds himself in a situation where he unwillingly learns to care for and teach Nivawa, a child of an intelligent aquatic species named Afrika, the ways of human culture.

"I like you, you like him, and he likes someone else." Everybody has an unrequited love.

Tenkawa Toichi is a normal, ordinary high school boy, except he has a secret identity - he is a member of the evil Phantom Organization, going by the alias Wolken. They are planning to conquer the Earth, but is being met with opposition from the so-called Angel of Judgement, Mighty Heart (Who, coincidentally, is a classmate of Toichi, Maishima Kokoro). Surprisingly, Mighty Heart is so weak that even Wolken's underlings can beat her easily, but they only figure out her ultimate weapon after Wolken accidentally comes into contact with her body...