recommendations

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

Butch x femme GLs:
https://www.mangago.zone/read-manga/my_princess_charming/
https://www.mangago.zone/read-manga/tsukuritai_onna_to_tabetai_onna/
https://www.mangago.zone/read-manga/shwd_pseudo/
https://www.mangago.zone/read-manga/himitsu_no_hanazono/
https://www.mangago.zone/read-manga/eat_u_up/
https://www.mangago.zone/read-manga/too_blue_to_call_love/
https://www.mangago.zone/read-manga/the_guy_she_was_interested_in_wasn_t_a_guy_at_all/
https://www.mangago.zone/read-manga/aoi_kun_9792_is_so_handsome_it_hurts/
https://www.mangago.zone/read-manga/liberta/
https://www.mangago.zone/read-manga/please_pick_my_love_too/
https://www.mangago.zone/read-manga/lemon_pie_night/
https://www.mangago.zone/read-manga/make_it_real/
https://www.mangago.zone/read-manga/tsuki_to_suppin/
https://www.mangago.zone/read-manga/a_handsome_tanned_girlfriend_who_s_easy_to_please/
https://www.mangago.zone/read-manga/the_princess_is_now_the_duke/
https://www.mangago.zone/read-manga/sexy_dynamite_dungeon/
https://www.mangago.zone/read-manga/the_moon_does_not_count_sheep/
https://www.mangago.zone/read-manga/pathetic_sunbae/ (dub-con, BDSM)
https://www.mangago.zone/read-manga/drown_in_the_angel_s_swamp/ (age gap, drugging and sexual assault [not between MC and FL])
https://www.mangago.zone/read-manga/asagiiro_no_saudade/ (attempted suicide)
https://www.mangago.zone/read-manga/your_false_embrace/ (adultery, depictions of miscarriage)
https://www.mangago.zone/read-manga/all_s_nice/ (dub-con)
https://www.mangago.zone/read-manga/for_garbage/ (adultery)
https://www.mangago.zone/read-manga/sora_haena/ (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/ (short story)
https://www.mangago.zone/read-manga/hottie_s_heel_uncensored/ (one-shot)
https://www.mangago.zone/read-manga/you_as_you_are/ (one-shot)

Butch x butch/masculine x masculine GLs:
https://www.mangago.zone/read-manga/makoto_senpai_no_mae_de_wa_kakko_tsukerarenai/
https://www.mangago.zone/read-manga/the_girl_i_hated/
https://www.mangago.zone/read-manga/my_date_is_a_total_ike_woman/
https://www.mangago.zone/read-manga/futsuu_no_koitte_nani/ (love triangle - A and C love B, internalized homophobia)
https://www.mangago.zone/read-manga/asahi_to_satsuki/ (one-shot)

Femme x Masc:
"Namae wa mada nai"
"My First Some-Some Oksoo" (r18)
"Pathetic Sunbae" (r18 , toxic)
"The Playgirl and The Prince" (r18)
"Drunken Relationship (Alcoholism)" (r18)
"Handsome girl and Sheltered girl"
"You, As You Are"
"Shiori and Yuki"
"Tsuki to Suppin"
"The Villainess" and The Woman Who Would Do Anything for the Sake of Love"

Barely meeting the criteria:
"Tsukuritai Onna to Tabetai Onna" (more nonchalant than masc but still a cool gal x femme)
"My Date is a Total Ike woman" (They're both masc/butch)
"The Girl I Hated" (masc X masc)
"Sukeban to Tenkousei ga Kudaranai Asobi o Suru dake no Hanashi" (Delinquent rather than masc)
"Asahi to Satsuki" (masc X masc)
"Boyish x Boyish" (masc X masc)

- Honestly this barely scratches the surface, but I don't have enough of time to scroll through thousands of my library, so have this... Sadly I didn't find as much as I expected to find, so I'm sorry I couldn't help much!