Comparatively speaking, how rare are Aura Knights compared to proper Wizards, in this hypothetical “magic can be learned” setting?

My only real reason for wanting magic was because I want magic items to exist, but if they’re already part of the setting, it’s fine to go without. That being said, the inclusion of magic in the setting as a discipline would kinda make it easier to handle Elves and Dwarves. Elves become innate magical geniuses while dwarves can craft magical items.