I love manhuas!! Here are some of my top favorites with school life setting
https://www.mangago.zone/read-manga/rejoice_in_your_enemies/
https://www.mangago.zone/read-manga/i_like_your_pheromones/
https://www.mangago.zone/read-manga/fake_slackers/
https://www.mangago.zone/read-manga/this_question_is_super_difficult/
https://www.mangago.zone/read-manga/the_story_about_you_x_me/
Try Fake Slackers, though the manhua was discontinued, the novel is really good.
https://www.mangago.zone/read-manga/my_boss_is_a_goddess/
https://www.mangago.zone/read-manga/my_boss_is_a_goddess/
https://www.mangago.zone/read-manga/sword_edge/
https://www.mangago.zone/read-manga/god_s_id_card/
https://www.mangago.zone/read-manga/it_s_not_that_i_want_to_wear_women_s_clothing/
https://www.mangago.zone/read-manga/i_asked_my_deskmate_to_beat_you/
https://www.mangago.zone/read-manga/augs_law/
Cute bl manhua with either a angst plot or a school life setting with a interesting plot for example I’ve read “Hope you’ve been well” , “salad days” and “saYe”