 If you liked
One Piece
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 ...then you might like
JoJo no Kimyou na Bouken Part 5: Ougon no Kaze
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Protagonists are de facto criminals (pirates/mafia). They frequently engage in fights against other criminals. Both involve supernatural powers through which the fights are conducted. The power system has unique ability given to a single person (no one other has the exact same ability). Both manga have original character designs and interesting fashion choices.