Butch x femme GLs:
https://www.mangago.me/read-manga/my_princess_charming/
https://www.mangago.me/read-manga/tsukuritai_onna_to_tabetai_onna/
https://www.mangago.me/read-manga/shwd_pseudo/
https://www.mangago.me/read-manga/himitsu_no_hanazono/
https://www.mangago.me/read-manga/eat_u_up/
https://www.mangago.me/read-manga/too_blue_to_call_love/
https://www.mangago.me/read-manga/the_guy_she_was_interested_in_wasn_t_a_guy_at_all/
https://www.mangago.me/read-manga/aoi_kun_9792_is_so_handsome_it_hurts/
https://www.mangago.me/read-manga/liberta/
https://www.mangago.me/read-manga/please_pick_my_love_too/
https://www.mangago.me/read-manga/lemon_pie_night/
https://www.mangago.me/read-manga/make_it_real/
https://www.mangago.me/read-manga/tsuki_to_suppin/
https://www.mangago.me/read-manga/a_handsome_tanned_girlfriend_who_s_easy_to_please/
https://www.mangago.me/read-manga/pathetic_sunbae/
https://www.mangago.me/read-manga/the_princess_is_now_the_duke/
https://www.mangago.me/read-manga/my_first_love_to_you/
https://www.mangago.me/read-manga/let_loose/
https://www.mangago.me/read-manga/asagiiro_no_saudade/ (attempted suicide)
https://www.mangago.me/read-manga/your_false_embrace/ (adultery, depictions of miscarriage)
https://www.mangago.me/read-manga/all_s_nice/ (dub-con)
https://www.mangago.me/read-manga/for_garbage/ (adultery)
https://www.mangago.me/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.me/read-manga/the_villainess_and_the_woman_who_would_do_anything_for_the_sake_of_love/ (short story)
https://www.mangago.me/read-manga/hottie_s_heel_uncensored/ (one-shot)
https://www.mangago.me/read-manga/you_as_you_are/ (one-shot)
Butch x butch/masculine x masculine GLs:
https://www.mangago.me/read-manga/makoto_senpai_no_mae_de_wa_kakko_tsukerarenai/
https://www.mangago.me/read-manga/the_girl_i_hated/
https://www.mangago.me/read-manga/my_date_is_a_total_ike_woman/
https://www.mangago.me/read-manga/futsuu_no_koitte_nani/ (love triangle - A and C love B, internalized homophobia)
https://www.mangago.me/read-manga/asahi_to_satsuki/ (one-shot)
HOLY COW THANK YOU
Just read Even A Hopeless Romantic Wants to be Loved, and now I want more butch. Can be butch x femme, or butch x butch. Can be manga or manhwa, preferably green flag (⌒▽⌒)