 If you liked One Piece |  ...then you might like JoJo no Kimyou na Bouken Part 3: Stardust Crusaders |
Both series tells about a adventure around the world (from Japan to Egypt in JoJo and from East Blue to Raftel in One Piece). Similiar fightinig abilities and the main characters have both a funny grandpa who has a lot great fights in the past. And in main crew of both are a Frenchman who is nice to ladies.
report Recommended by Joseph-Jones
both follow people adventuring an both have been published in shonen jump, they both show a crew of people pirating (and in this was, crusading) through various locations to find a certain place or fight a certain person
report Recommended by SynthwaveCrusade