One Piece
Anime Like Hunter x Hunter
One Piece is just about the longest-running anime out there, and that high episode count is something it has in common with Hunter x Hunter. Both shows are very lighthearted in tone, with protagonists that seem like your typical shounen hero at first, but become much more interesting, layered characters the more you watch. Luffy is a bit sillier than Gon, but their personalities are actually a pretty close match. There’s a spirit of adventure that permeates throughout One Piece, that you can also find present in much of Hunter x Hunter.
While the protagonists are similar, both shows also have a quirky cast of supporting characters who each have their own goals and fighting styles. One Piece is a dead ringer if you’re looking for an anime with a similar tone to Hunter x Hunter, and you’ve got plenty to watch if you get into it as there are over 800 episodes and counting.