Fun Fantasy series with immense worldbuilding and great characters?

https://lemm.ee/post/1639027

Fun Fantasy series with immense worldbuilding and great characters? - lemm.ee

I want to read a recent(ish) fun fantasy series with an eighteen year-old male protagonist, that has immense worldbuilding and greatly-written characters. Any suggestions?

Classics:

  • Amber series by Roger Zelazny
  • Discworld series by Terry Pratchett
Those don’t sound "recent(ish) as OP put it.
They don’t really fit the criteria from op, but they’re both must reads