There are a few novels with the main character being a knight that I can recommend to you. They are 'The Divine Seal: Taking advantage of Cai' er's trial to trick her into becoming a wife','The Dark Demon Knight' and 'The Knight Passing by Marvel'. In these novels, the main characters were all Knights. They had their own adventure stories and characteristics, which were very worth reading. I hope you like this fairy's recommendation. Muah ~π