MALAZAN
I’m only on the 5th book but the world building is Tolkien level of detailed. Writer Stephen Erickson is an anthropologist who brought he and his achaelogist friend Ian esselmont dnd world to written reality. Esselmont has books in the series too but not that far along yet.
It makes it difficult to pick up other books afterwards. Major caveat I didn’t know what the fuck was happening until the second book. Then it clicked.
Wonderful writer and world building.
Baldwin made everyone learn