Hi!
I’m looking for books about mages, wizards and witches in which the magic itself is a central part of the story and not just there so the MC can slam a fireball into the face of his foes.
Maybe the magic has a will of its own or the MC is trying to ‘restore’ it from some kind of ‘disease’ or something else.
wheel of time and The Belgariad for sure. If you like nations quasi from historical empires then that will be a bonus with The Belgariad.