These are a couple of ideas I had pop in my head, but I am not really good at writing stories. So if someone could take on this project it would be greatly appreciated.
Crossover #1 Otome wa boku Koishiteru & Princess Princess After Takako finds out about Mizaho she wants him expelled. So he gets transferred to Fujimori Gakuen. Even though he is a Third year Student Council wants him to be a princess.
Crossover #2 Ouran High School Host Club & Skip Beat. Kyoko has an upcoming film and in order to get into her roll, which she will play a boy) she remembers one of vistors at Shotaro's parent's inn the Host Club. So she goes to that school on a scholarship, with the help of the President of LME, as 10 year old Hizuri Kuon (from her memories of Corn)