And I want to give a suggestion for new fans who only just getting to know One Piece from live action adaptation...if you are interested to check out the original source....I'd say go for Manga, not anime. (For anime, just watch the movie like Strong World, Z, Gold, and Red).
The manga is a much more straightforward without any fillers (which can be a drag for sure).
Watching the anime for me is quite stressful though (because for example the battle between Luffy vs Katakuri can be dragged into, for like 6-8 episodes while in manga, it just took only 3 or 4 chapters).
Reading the manga and watching the anime imo is also a very different experience...so it depends on preference here but for straightforward story and arc, I'd say go for manga.