Recommendations

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

https://www.mangago.zone/read-manga/aka_to_kuro_katsura_komachi/
https://www.mangago.zone/read-manga/kobi_no_kyoujin/
https://www.mangago.zone/read-manga/narippanashi_no_ai_no_kane/
Just for a few. Some trigger warnings such as blood/violence may apply to some scenes in these recommendations.
Hope these helped!

Saezuru Tori wa Habatakanai
Monetary Love
Syunrai to Mitsu
May I Bondage the Yakuza?
The Omega Takes a Husband
Tasuketa Yakuza ni Nerawaretemasu
A Kiss for Each Face

I have a list on another site, send me a message if you want the link.