ASoIaF, Harry Potter and Wheel of Time respectfully are the prime 3, followed closely by Hobbit/LotR and the Dune Series. All series but you don't need to get them all at once, you can start them and pick the rest up later if you enjoy the first in the series. You're going to limit yourself greatly if you don't, as the best books in fantasy tend to have more than one.
I personally am going to pick up a "Knight of the Seven Kingdoms" for Christmas, as I've only watched YT vids for it. Now that they're going to do a HBO GoT spin-off, so I hear, I'm going to get off my ass for it since I've enjoyed the overview vids, and have been reading ASoIaF since '02-'03 or so, though I haven't actually read it so I cant recommend the book in good conscience.
If you've read all of these series already then I'm extremely impressed as most people haven't that sport Naruto Sigs, based on age alone, not trying to knock the show or people that enjoy it mind you.
This post was edited by imez on Nov 11 2017 10:10am