The length was the best part! The establishing, the buildup, the arc!
Uh, but I actually have not really read a lot of books since and liked even fewer, and none really like Priory? Gideon the Ninth and Memory of Empire are probably the two biggest ones but neither are fantasy. Maybe just go through my sparsely used books tag? I guess there’s the Nevernight trilogy, though the f/f takes a super long time to start. There are so many books I’ve heard about and want to get around to (including The Never Tilting World!) but obviously can’t rec yet.