Can someone please recommend me some Yakuza/Mafia stuff? doesn't matter if it's yaoi or no...

MAFIA
http://www.mangago.zone/read-manga/you_re_my_loveprize_in_viewfinder/
http://www.mangago.zone/read-manga/dispar_4u/
http://www.mangago.zone/read-manga/yondaime_ooyamato_tatsuyuki/
http://www.mangago.zone/read-manga/mitsumei/
http://www.mangago.zone/read-manga/saezuru_tori_wa_habatakanai/
http://www.mangago.zone/read-manga/burns/
http://www.mangago.zone/read-manga/madman_combo/
http://www.mangago.zone/read-manga/seduction_against_seduction/
http://www.mangago.zone/read-manga/gangsta/ (not yaoi)
http://www.mangago.zone/read-manga/gray_lujun_kazekaoru/
http://www.mangago.zone/read-manga/totally_captivated_dj_mr_sangchuls_diary/
http://www.mangago.zone/read-manga/circle_trap/
http://www.mangago.zone/read-manga/legs_which_cannot_walk/?ov8I
http://www.mangago.zone/read-manga/kobi_no_kyoujin/
http://www.mangago.zone/read-manga/cover_up/
http://www.mangago.zone/read-manga/trap_city/ (MUST READ)

http://www.mangago.zone/read-manga/peach_love/

http://www.mangago.zone/read-manga/nevermore_team_hitman/

http://www.mangago.zone/read-manga/raise_wa_tanin_ga_ii/
not yaoi it's cool though