I Became a King in a Western Fantasy World

Any Novels About Knights and Magic in the Western Middle Ages?

Something featuring elements like dragon knights, dragon slayers, mages, elves, dwarves, and beastfolk.

Western Fantasy with Knights, Warlocks, and Mages

I'm in a reading slump. I hope my fellow readers can recommend something, preferably with a System or some kind of support ability.

Looking for Western Sequence Novels, Like Lord of the Mysteries Meets Detective Fiction