I'd thoroughly recommend My Hero Academia. One Piece's glacial pacing has really diminished my interest in it , so I tried a few that I didn't get on with (Kill la Kill, Sword Art Online. Attack on Titan, Tokyo Ghoul), but with MHA, both anime and manga are excellent. It doesn't try to be dark and edgy for the sake of it, most of the characters are much more than one-dimensional shonen cliches and there are some moments (particularly in the anime) that can't help but make you grin like an idiot.