Totally captivated if you go for the yakuza vibes!!ლ(´ڡ`ლ)
Finder manga is one of a kind, if there's other manga with similar story line you won't be satisfy reading them.
Yeah there's many similar theme, but it's hard to find other manga with similar chemistry like Finder.
Indeed, i've been in this stage before when i read Finder for the first it.
I was searching for similar manga like crazy expecting it would be as great as Finder, then i gave up cause those manga with similar story like Finder has bad quality and they disappoint me so much.
But still there's some great manga with the same Yakuza theme, like Totally Captivated ლ(´ڡ`ლ)
give me yaoi manga like Finder (=・ω・=)