If you're looking for manga similar to Ouran High School Host Club (Light Novel), you might like these titles.
Yusuke Yuki, who has spent his entire high school life studying and working part-time in order to keep his special student tuition exemption, finds himself desperately desiring a girlfriend. On his way home, he looks up and accidentally sees a girl attempting to jump off the roof of an abandoned building. A strange encounter leads to a new way of life and a love story with the mysterious girl named Hatsuhaku Kotori.
As a result of an unexpected event, Akira Kogure - an introverted and lonely young man - discovers that the beautiful student council president, Shizuku Takasaki, is secretly the former female head of a gang. She apparently wants to marry a man who's stronger than her, but what she doesn't know is that Akira was a juvenile delinquent whose strength surpassed even hers...
Chifuyu Amamiya, a high school girl who is lonely for a lifetime. I am haunted by a handsome (self-proclaimed) Shinigami, and I'm in trouble because he's stalking. In addition, a group of “God-like Poems” such as “Victory Goddess Possession” and “Inari-sama Possession” and teachers of “Rice God Possession” will appear more and more.