The girl I fell in love with is… an alien!? I, the class president, happened to fall in love with my classmate, the eccentric Haru. I confessed my feelings, but her true identity was an extraterrestrial who came to Earth to survey it. “I still like you!” I started going out with Haru, but I have a further “secret” to keep…

From MangaHelpers:
This manga is related to the "Date A Live" novel and anime. It features members of the AST (AntiSpirit Team), a special squad devoted to fighting spirits. Okamine Mikie idolizes her superior AST member, Tobiichi Origami, and may be in love with her as well. Unfortunately, Origami seems to want nothing to do with her. One day, they end up heading toward an explosion that wasn't caused by a spirit. Instead, it was caused by a girl named Ashley Sinclair, who transfers to their school shortly after the incident!

The future cannot be changed! In 2019, former track and field club member Maki Makino meets a mysterious man with sunglasses on her way to school who saves her life. That encounter connects her to her past and future... Presented with overwhelming power, a 'boy meets girl' story opens here with unpredictable results!

Spin-off Comic from "The World of Otome Games is Tough for Mobs" Starts! A kindergartener mob life comedy! Even when they're tiny, they're still female chauvinists!

20 years ago, Weve Aliens arrived at Earth to search for marriage partners. Weve are perverted and love interbreeding. With their advanced technology, they have solved all the Earth's problems to do with the environment, food, and resources.

Gen is a student at the prestigious Human-Weve school Shinryou Academy. Due to his late grandfather's words, he loathes Weve and believes that pure humans will eventually die out if something isn't done about Weves soon. However, Gen meets the Weve girl Mirika, who falls in love with him.

7 years ago a strange disaster occurred in the 24th ward when laws of reality were distorted in that area. Our main character is a high school boy who lost his little brother. Can Hanako-san from his school help him find his sibling again?

But more importantly who is this Hanako-san of the 24th ward?

A love toy doll that is equipped with autonomous AI and behaves like a human being. They were forbidden to "love".
If you fall in love, the doll will be stupid. Still, they like someone. Is love a human privilege, or is it Science fantasy of dolls in love.

Science fiction action that begins with Boy meeting Gyaru!

The high school student Kurashiki Midsummer has one of the best kendo skills in Japan, but she is not good at studying. Together with Tsumugi, an insect video distributor, and Ayano, an urban legend and conspiracy theorist, it was midsummer to receive repair from the first day of summer vacation, but at that time, a Self-Defense Force helicopter landed in the schoolyard. This was the beginning of the summer vacation which is super dangerous and too hot for midsummer!

A droid picked up an abandoned child and decided to raise it.

A poetic, surreal yet heartwarming 4 panel series about the everyday.

The "slapstick daily-life story" Azur Lane Queen's Orders will center around the tsundere Queen Elizabeth and her school friend Warspite (the "Grand Old Lady").

Sho and his friend, Tetsuro, stumble upon a strange orb-like mechanism, the Guyver Unit, in the woods. It physically bonds with Sho and turns him into the alien soldier, Guyver. His mission is to protect the Guyver Unit from the Japanese corporation known as Chronos. They are after it and two other units just like it. To retrieve the object, they send out vicious monsters known as Zoanoids. So no one is safe in Sho's life; not even himself.

From Population GO:
The manga adaptation of Gundam 0083. Years after the One Year War ended, in hopes of resurrecting the Principality of Zeon forces, Anavel Gato (also known as the "Nightmare of Solomon") steals a Gundam Unit 02 from the Earth Federation Forces. In the heat of battle Kou Uraki enters Unit 01 to confront Gato.

From mangaupdates:

Born into a wealthy family, she lost her mother at a young age.
She is Riona, a girl who was raised by a single father.
At the girls' school she attends, she has many friends and a special partner of hers,
She lives feeling a little lonely that her busy father has just left her house.

One day, her father bought a robot that she said was her "housemaid"
She witnessed the act of "Forty"...?

A girl who wants her affection and a robot who doesn't know her feelings.
A dramatic story of gems!

When the end of the world came, in the hopeless darkness, Gu Qingshan broke away from time and space, and returned to the world before it collapsed, determined to change his fate. But as time went on, he gradually realized that the apocalypse is not as simple as it seemed…

From MangaHelpers:
From the perspective of an alien planet with super-advanced technology and tiny (1/60th the size of a human) inhabitants, planet Earth was the perfect location to banish their worst criminals. Five of said criminals were sent to the planet to be exiled, attached to little critters like frogs and rabbits so they can never be fully active. Due to an accident, these five criminals managed to escape and attach themselves to five different girls that were nearby. The one responsible for the banishment of these five criminals now must detach them from the girls by mouth-to-mouth release.

Souya is a sullen salaryman whose days are spent chasing after work deadlines all while still keeping his dream of becoming a manga artist. To him, his one and only support in life is none other than his beloved wife, Yuuka. One day, on his way back home, he was suddenly caught in an accident and before he knew it, an alien had taken hold of his body! Not only that, the evil threat of another alien is closing in on Yuuka too!

Here comes Souya as "Otto-man", his superpowered husband form, as he jumps in to save his dearest wife! Have a taste of his love for wife and this world!

The blacksmith NPC ‘Aidan.’ One day, his village gets deleted by the hands of the system moderator and as he and his little sister ‘Elise’ perished, he swore to himself. I’ll destroy this system with my very hands. It was then…! “You have unlocked moderator perms, Moderator Lv. 1” Aidan wakes up with a new power, Marking the beginning of his journey as a moderator…! What will become of Aidan?!

Hoshino Star, a male high school student who lives leisurely in the countryside, has a unique power—that is, being able to get along with any animal! Although Hoshi spends his days feeling supreme joy in interacting with animals, on the other hand, he also has a great dislike of humans. Kirari Yozora, a childhood friend who struggles with her extreme personality, suddenly thinks one day. ──What would Hoshi think if there were animals like humans?At that time, a mysterious object comes flying with a roaring sound. Appearing from the other side of the dust cloud is the most terrifying and worst visitor with cute fur ears and a tail. A genius tamer VS greedy kemomimi unfolds in this relaxing erotic comedy!