Yai's Questions (4)

https://www.mangago.zone/read-manga/don_t_say_that_you_love_me/ close enough??

Here are some recs, hope it helps and you enjoy dear!
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/
https://www.mangago.zone/read-manga/peach_and_her_papas/
https://www.mangago.zone/read-manga/the_king_of_home_cooking/
https://www.mangago.zone/read-manga/my_darling_signed_in/
https://www.mangago.zone/read-manga/4_week_lover/

These are all GLs:

https://www.mangago.zone/read-manga/love_gives_me_superpowers/ (story starts in high school, but goes into college pretty soon)
https://www.mangago.zone/read-manga/that_time_i_was_blackmailed_by_the_class_s_green_tea_bitch/ (first season is set in high school, second season is college)
https://www.mangago.zone/read-manga/listening_to_the_stars_bbl_scans/
https://www.mangago.zone/read-manga/my_princess_charming/
https://www.mangago.zone/read-manga/handsome_girl_and_sheltered_girl/
https://www.mangago.zone/read-manga/blooming_sequence/
https://www.mangago.zone/read-manga/serenade_keum_kyesoo/
https://www.mangago.zone/read-manga/savior/
https://www.mangago.zone/read-manga/dallaeya/

Ima camp here but this one’s good asf
https://www.mangago.zone/read-manga/truth_or_dare/

https://www.mangago.zone/read-manga/a_returner_s_magic_should_be_special/

https://www.mangago.zone/read-manga/black_haze/

https://www.mangago.zone/read-manga/rendezvous/ (kinda?)

https://www.mangago.zone/read-manga/detective_vlog/

https://www.mangago.zone/read-manga/phantom_high/

Only ones I could think of

A bit different from those, but here's one you might like (人*´∀｀)｡*ﾟ+

https://www.mangago.zone/read-manga/my_school_life_pretending_to_be_a_worthless_person/

gotchu! bet you'll love this! because it's the same vibes as the stories you mentioned.

https://www.mangago.zone/read-manga/mairimashita_iruma_kun/ (it has anime adaptation)
https://www.mangago.zone/read-manga/youkai_gakkou_no_sensei_hajimemashita/ (it has anime adaptation)
https://www.mangago.zone/read-manga/sensei_bokutachi_ga_sekai_wo_horoboshimasu/