Reccs Pleasseeee

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

Any story by harada tbh
Liquor and cigarettes too
Bokura no hentai
December rain
https://www.mangago.zone/read-manga/kakkou_no_yume/

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

Suicide line
https://www.mangago.zone/read-manga/a_b/
https://www.mangago.zone/read-manga/vampire_library/
https://www.mangago.zone/read-manga/park_hanhoo_s_manager/
https://www.mangago.zone/read-manga/guardian_with_benefits/
https://www.mangago.zone/read-manga/daniel_s_extremely_private_villain/
https://www.mangago.zone/read-manga/mobyama_aji_to_mobtani_crou_no_kareinaru_nichijou_e_no_chousen/

Unromantic
Dark Heaven (highly recommend)

https://www.mangago.zone/read-manga/chu_zhong_yi_nian_ji/
https://www.mangago.zone/read-manga/summer_eyes/
https://www.mangago.zone/read-manga/stigmata_aikon/
https://www.mangago.zone/read-manga/let_dai/
https://www.mangago.zone/read-manga/konya_mo_nemurenai/