HELP PLEASE!!!!

prequel:
http://www.mangago.zone/read-manga/bi_no_isu/

sequel: http://www.mangago.zone/read-manga/kobi_no_kyoujin/

Try this: http://www.mangago.zone/read-manga/tsumasaki_ni_kiss/

I'm not good at link. But this is one of my favorite yakuza yaoi (it's ongoing). Both main characters are yakuza, but the uke is the boss. May not be exactly what you are looking for, but an excellent manga to check out.
Saezuru Tori wa Habatakanai

http://www.mangago.zone/read-manga/bi_no_isu/
http://www.mangago.zone/read-manga/kobi_no_kyoujin/
http://www.mangago.zone/read-manga/nights/ ch1, 5.4, 5.5)
http://www.mangago.zone/read-manga/usagi_otoko_tora_otoko/
http://www.mangago.zone/read-manga/aiso_tsukashi/ (former yakuza)
http://www.mangago.zone/read-manga/heart_strings/
http://www.mangago.zone/read-manga/tight_rope/
http://www.mangago.zone/read-manga/koi_no_amai_toko/ (art is nice but the story is kinda nah)

Thank you!!!!

thank you!!!

thank you!!!

i'll check it out thank you!!

My favorite one is http://www.mangago.zone/read-manga/honto_yajuu/
Warning, updates are slow.