Others have mentioned these, no doubt. But I think they’re worth mentioning again. Sanderson’s Cosmere material is a superb starting point to get into fantasy.

Mistborn era 1 is a tight, fast paced trilogy with fantastic world building and fun, loveable characters. The setting of these books, just the world itself, is one of my favorites for sure.

Stormlight Archive is an enormous fantasy series, essentially Sanderon’s magnum opus. He’s halfway through writing his fifth book in the series out of a planned 10 and it is so so fun. There are some older protagonists in this book, but they are all fantastic.

Third, not Sanderson (except the last three, sort of) is Wheel of Time. I started reading fantasy with WoT, because a 14 book series just sounded like a really fun adventure to go on. I was hooked after book one. It’s a huge series that follows a fairly small cast of main characters who undergo so much growth. The three core characters are all 18 year old males, give or take a couple years. It has what might forever be my favorite ending to a series. Maybe not though. I haven’t read a ton of fantasy yet.

Give any of those three a spin and I think you’ll find that you really like fantasy.