Yaois ( or shounen ai) with a powerful seme. Like a mafia boss, or someone who holds alot ...

http://www.mangago.me/read-manga/a_thousand_cranes/

Yakuza
http://www.mangago.me/read-manga/tight_rope/
http://www.mangago.me/read-manga/heart_strings/
http://www.mangago.me/read-manga/bi_no_isu/
http://www.mangago.me/read-manga/koi_made_hyakurin/
http://www.mangago.me/read-manga/cover_up/
http://www.mangago.me/read-manga/kakugo_wo_kimete/
http://www.mangago.me/read-manga/yuugure_no_machi/
http://www.mangago.me/read-manga/gokudou_darling/
http://www.mangago.me/read-manga/dispar_4u/
http://www.mangago.me/read-manga/lifeless_man/
http://www.mangago.me/read-manga/spicy_sugary/
http://www.mangago.me/read-manga/flaver/
http://www.mangago.me/read-manga/abarenbo_honey/
http://www.mangago.me/read-manga/burns/
http://www.mangago.me/read-manga/gives/
http://www.mangago.me/read-manga/never_let_go/

http://www.mangago.me/read-manga/saezuru_tori_wa_habatakanai/

You're in for a ride