If you're looking for manga similar to uni., you might like these titles.
Melty Moment follows Takeru as he gets closer to several girls in high school. He ends up leading an election committee that is filled with cute girls. There's shy little Natsuki, serious little Misao, his childhood friend Yuuka, classmate Sumire, and talented Aoi. Who will he end up with?
The Ootoriryouran Academy is a highly prestigious private school well known for it's high academic standards, ruled over by two separate student groups—the Ryouran Association and the Student Council. Katsuragi Shou is the Academy's newest student. He is greeted by fireworks and celebrations, but soon finds that the academy was oversubscribed. The male dorms are already fully occupied, and the only place left for him to stay is the all female Ryouran Dormitory.
The main male character is Asaba Yuma, and the story follows the school life he shares with many girls and his one male friend. These girls include Tsukishima Yuri and her twin sister Hanako, who is in the newspaper club, Yuma's little sister Konami, who likes shogi, and several others. Will Yuma find love in his teenage years?