Guilty crown Sun Ken rock( manga that’s actually bout mafia but lots of fights) Black lagoon Gangsta Angel dendetsu Akira (its a movie) Samurai champloo Taisho otome (it’s a romance but also a slice of life, like in the year of 1880s or smt) Texhnolyze (I think you’ll like this, maybe watch it first?) Paranioa agent Future diary One of the few ones I ever watched when I was a kid, 1-deltora quest and 2-blue dragon, idk if you’ll like them but you can check it out Cyberpunk edge runners Ghost in a shell