Why do I recommend One piece?
So I recommend it because I think it is an Anime/Manga that gets you intrigued. After all, at the end of every book it's starting a little bit the next book and leaves you with the suspense to what is going to happen in the next book, apart from that you advance much quicker reading the Manga than watching the Anime but sometimes I prefer watching the Anime.
If you grew up reading books of adventures and marvel superheroes
you will like One piece because it contains some characters that by eating a type of fruit in the Manga that is called the Devil fruit as it gives you powers.
In the Manga, they are always going on adventures and going threw different places getting resources fighting against other pirates and are trying to be the pirate Kings.