https://www.mangago.zone/read-manga/raise_wa_tanin_ga_ii/
https://www.mangago.zone/read-manga/mangaka_to_yakuza/ its the typical smut manga with fl that has to give services due to a debt. So in reality its non con but it´s not very pushy with the rapey stuff and through their relationship they get a character development both fl and ml
https://www.mangago.zone/read-manga/sazanami_soshi_ni_shojo_o_sasagu_s_jikkuri_medemashou_ka/
https://www.mangago.zone/read-manga/undercover_chaebol_high_school/ manhwa
https://www.mangago.zone/read-manga/playing_with_the_hot_gangster/ manhwa and fluffy
https://www.mangago.zone/read-manga/kitsch_wedding/ ml is more so like a
https://www.mangago.zone/read-manga/ojou_to_banken_kun/ not my thing as theres a age gap and the fl is a minor
https://www.mangago.zone/read-manga/koi_to_dangan/
https://www.mangago.zone/read-manga/gokushufudou_the_way_of_the_house_husband/ anime adaptation and involves around a ex yakuza married who has turned around his life for the good
https://www.mangago.zone/read-manga/gokusen/
https://www.mangago.zone/read-manga/gokudou_no_otoko_kaimasu/
https://www.mangago.zone/read-manga/gokukon_chou_dekiai_yakuza_to_keiyaku_kekkon/
https://www.mangago.zone/read-manga/dekiai_yakuza_ni_wa_amayakasarenai/
https://www.mangago.zone/read-manga/excuse_me_dentist_it_s_touching_me/
https://www.mangago.zone/read-manga/midnight_poppy_land/
https://www.mangago.zone/read-manga/gokudou_to_omega_mukidashi_no_katsuai/
https://www.mangago.zone/read-manga/hentai_yakuza_to_abunai_aijin_keiyaku/
https://www.mangago.zone/read-manga/gokutsuma_days_gokudou_sankyoudai_ni_semaretemasu/
https://www.mangago.zone/read-manga/zetsurin_yakuza_no_gokujou_aibu_nogarerarenai_keiyaku_kekkon/
recommend straight stories with gangster ml preferably colored but manga is fine as well