Peach love and banana fish
Ps banana fish hardly shows the romance between the characters
Idk what you consider "good" art, but i really like shoowas style http://www.mangago.zone/read-manga/iberiko_buta_to_koi_to_tsubaki/
Spontaneously I remember: Nirameba Koi & Shinobeba Koi (especially last one fits: both MCs in motorcycle gang)
Bi no Isu series - bit more hardcore
Rouge series - personal favorite
Idefinitley likes the art. Really funny too lol. Thanks
Anyon have anye have anh recommendations where main character is in a gang shounen ai or yaoi MUST HAVE GOOD ART