From Yuri Project:

Youko has a complex from being compared to her older sister her entire life, so middle school is off to a bad start when the tennis club is trying to recruit "Aiko-senpai's younger sister" and her best friend Maki. She is shocked to find out that Maki is interested in both the club and its leader Keita, whom Youko immediately disliked, and unfamiliar feelings of jealousy soon threaten to cause a rift between them.

A girl named Hiromi dreams to become a prince. One day a cute girl named Juri transfers into Hiromi's class. Due to Hiromi's cute looks she is bothered by Hiromi's classmates. Juri blatantly rejects Hiromi's classmates' invitation to join their group and she earns some scorn from Hiromi's friend, but Hiromi doesn't wish to bother Juri.
After Hiromi takes initiative to speak to Juri, Juri becomes attached to Hiromi and nicknames her Romeo.
Thus the story between Juli/Juri and Romeo/Hiromi begins.

The setting is Lillian Academy, a private Catholic all-girls school where the student council is known as the Yamayurikai (Mountain Lily Council) and younger students are taken under the wing of older students through a system known as the "soeur system" ("soeur" is French for "sister"). The main character, Yumi, who is basically a nobody, suddenly finds herself interacting with the members of the Yamayurikai and their soeurs, most notably her crush, the talented, beautiful, and withdrawn Sachiko...

Living with an alien was something Misuzu never imagined would happen, but when it does, you just have to roll with the punches. Naoko is from another world, but you wouldn’t think that since she looks just like another school girl. But her weird but pleasant personality and the advanced technology she has brought makes living with her anything but normal. Misuzu and her family make her feel part of the family and try to go about their daily lives.

Oneshot from Sayuri Hime

In "Traces of Snow," by Takahashi Mako, the protagonist goes to visit an old friend.

Koharu is solo again, so her friends drag her out to get hammered and talk about their relationships.

Source: Yuri Project

A story about Kawai-san taking music classes to be together with the senpai she loves. The problem is that her life is made unbearable by the sullen and strict drummer Ichibashi-san.

Another installment featuring Kawai-san and Ichibashi-san

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.

Childhood friends Yae Akane & Sakura Kasumi were inseparable as children until Yae and her family moved overseas. A few years later Yae is back and they are in the same school but now Sakura continuously ignores Yae?

Nanase Tachibana lives with the memories of her ex-girlfriend who passed away, will she be able to live with her twin sister?

[From Lililcious]:

One of the older yuri manga out there. Resine comes to a new boarding school to find she is rooming with Simone, a rebel who is rude to her from the start. However, Resine and Simone end up falling in love...

Volume 3 of Yamagishi Ryouko Masterpiece Collection:

1. Himawari Saita (YAMAGISHI Ryouko)
2. Lagrima
3. Shiroi Heya no Futari

From Lililicious:

"Flowers Dwelling in a Forest Manor," by Yuzuha Seiro, is about two girls who are in the process of being converted to vampires.

A bullied girl is befriended by another girl.

"Original" doujinshi by the circle Ponpono.

From Lililicious:

Madoka tells Mayu she likes her and then runs away when Mayu asks her out. Mayu tracks her down and the two of them begin dating, but there's something Madoka isn't telling her...

Set in early 20th century France, Claudine...! follows the story of a transgender man into adulthood. He struggles through life, being the first child after three older brothers to take after his father, and is constanly misgendered by those around him. He wants only to be able to find true love...

A hair stylist develops a crush on a regular client.

Sachi lost her parents due to the sudden attack of an alien race called the Gosta. While living in an orphanage of children who suffered the same fate, a girl with no memory, Ai, suddenly appeared. Who is this girl and what is she so afraid of?

Yui is simply a ghost wandering around the beach. She does not know who she is or what happened on "that day." That is, until she meets up with her big sister Yuria who helps fill in the missing pieces...