RECOMMMMM YURII

Masculine (but not necessarily butch) x feminine GLs:
https://www.mangago.zone/read-manga/handsome_girl_and_sheltered_girl/ (manga)
https://www.mangago.zone/read-manga/asagao_to_kase_san/ (manga; SEQUEL: https://www.mangago.zone/read-manga/yamada_to_kase_san/)
https://www.mangago.zone/read-manga/big_love_from_ultra_deep_space/ (manga)
https://www.mangago.zone/read-manga/shinyuu_ni_sukina_hito_ga_dekitarashii/ (manga)
https://www.mangago.zone/read-manga/living_will/ (manhwa)
https://www.mangago.zone/read-manga/the_day_of_the_shooting_star/ (manhua)
https://www.mangago.zone/read-manga/love_gives_me_superpowers/ (manhua)
https://www.mangago.zone/read-manga/watashi_to_kanojo_no_kawaii_koi_no_hajime_kata/ (manga)
https://www.mangago.zone/read-manga/the_star_next_door/ (manhwa)
https://www.mangago.zone/read-manga/surrender_to_love/ (manhua)
https://www.mangago.zone/read-manga/miss_forensics/ (manhua)
https://www.mangago.zone/read-manga/sukeban_to_tenkousei_ga_kudaranai_asobi_o_suru_dake_no_hanashi/ (manga)
https://www.mangago.zone/read-manga/my_angel_childhood_friend_was_a_gal_when_we_met_again/ (manga)
https://www.mangago.zone/read-manga/the_song_that_transcends_this_world/ (manhua)
https://www.mangago.zone/read-manga/cheerful_amnesia/ (manga)
https://www.mangago.zone/read-manga/sora_haena/ (main and 2nd side couple)
https://www.mangago.zone/read-manga/usotsuki_hanayome_to_dousei_kekkon_ron/ (manga; cheating)
https://www.mangago.zone/read-manga/futsuu_no_koitte_nani/ (manga; love triangle - A and B love C, internalized homophobia)
https://www.mangago.zone/read-manga/sabori_nara_hokenshitsu_de_douzo/ (manga; age gap, school nurse-student relationship)
https://www.mangago.zone/read-manga/dark_mermaid/ (manhwa; bullying, sexual harassment and assault, attempted sexual assault, blackmail)
https://www.mangago.zone/read-manga/marie_and_alex/ (manhwa; master-servant relationship, BDSM)
https://www.mangago.zone/read-manga/kill_switch/ (manhwa; love triangle)
https://www.mangago.zone/read-manga/umineko_sou_days/ (manga; incestuous side couple)
https://www.mangago.zone/read-manga/love_thy_neighbor_2/ (manhwa; age gap, toxic relationship, adultery)

Butch x femme GLs:
https://www.mangago.zone/read-manga/my_princess_charming/ (manhwa)
https://www.mangago.zone/read-manga/tsukuritai_onna_to_tabetai_onna/ (manga)
https://www.mangago.zone/read-manga/shwd_pseudo/ (manga)
https://www.mangago.zone/read-manga/himitsu_no_hanazono/ (manga)
https://www.mangago.zone/read-manga/eat_u_up/ (manhwa)
https://www.mangago.zone/read-manga/too_blue_to_call_love/ (manga)
https://www.mangago.zone/read-manga/the_guy_she_was_interested_in_wasn_t_a_guy_at_all/ (manga)
https://www.mangago.zone/read-manga/aoi_kun_9792_is_so_handsome_it_hurts/ (manga)
https://www.mangago.zone/read-manga/liberta/ (manga)
https://www.mangago.zone/read-manga/please_pick_my_love_too/ (manhwa)
https://www.mangago.zone/read-manga/lemon_pie_night/ (manhwa)
https://www.mangago.zone/read-manga/make_it_real/ (manhwa)
https://www.mangago.zone/read-manga/tsuki_to_suppin/ (manga)
https://www.mangago.zone/read-manga/a_handsome_tanned_girlfriend_who_s_easy_to_please/ (manga)
https://www.mangago.zone/read-manga/the_princess_is_now_the_duke/ (manhwa)
https://www.mangago.zone/read-manga/are_you_only_going_to_study/ (manhwa)
https://www.mangago.zone/read-manga/pathetic_sunbae/ (manhwa; dub-con, pet-play)
https://www.mangago.zone/read-manga/drown_in_the_angel_s_swamp/ (manhwa; age gap, drugging and sexual assault [not between MC and FL])
https://www.mangago.zone/read-manga/asagiiro_no_saudade/ (manga; attempted suicide)
https://www.mangago.zone/read-manga/your_false_embrace/ (manga; adultery, depictions of miscarriage)
https://www.mangago.zone/read-manga/all_s_nice/ (manhwa; dub-con)
https://www.mangago.zone/read-manga/for_garbage/ (manhwa; adultery)
https://www.mangago.zone/read-manga/sora_haena/ (manhwa; first side couples is butch x femme; first side couple features an age gap and former teacher-student relationship)
https://www.mangago.zone/read-manga/the_villainess_and_the_woman_who_would_do_anything_for_the_sake_of_love/ (manga; short story)
https://www.mangago.zone/read-manga/hottie_s_heel_uncensored/ (manhwa; one-shot)
https://www.mangago.zone/read-manga/you_as_you_are/ (manga; one-shot)

My bad, didn't see that you wanted smut, some of the stories on the list (mostly mangas) don't actually have smut.

OMY GOSSHHHH THANK YOU SO MUCH