any coloured school life or unrequited love manhuas/ manhwas? or seme x seme ><

High school:
https://www.mangago.zone/read-manga/kisses_x_kiss_x_kisses/
https://www.mangago.zone/read-manga/blunder_turned_wonder/
https://www.mangago.zone/read-manga/this_question_is_super_difficult/
https://www.mangago.zone/read-manga/19_days/

University:
https://www.mangago.zone/read-manga/peach_and_her_papas/
https://www.mangago.zone/read-manga/there_s_something_wrong_with_my_popularity/
https://www.mangago.zone/read-manga/semantic_error/
https://www.mangago.zone/read-manga/pairing_names/

Sorry if you read them already, but here are some I remember, I hope it helps and you enjoy dear!