Which novels had dragons as the main characters?

😋If you like novels with dragons as the main characters, I have a few here to recommend to you. The first book was the Invincible Hero: The Lord of the Giant Dragons. The main character was Zhao Hao, the reborn. He led countless golden dragons, green dragons, black dragons, red dragons, and crystal dragons to sweep through the myriad worlds and become the Lord of the Giant Dragons. The second book was "Dragon Wars." Any random dragon would insist on doing sit-ups and push-ups every day. The main character was a system style, a cool system. His pursuit was very simple, and the female hosts were responsible for dominating the world. The third book was The Legend of the Dragon King of Ice and Fire. The protagonist was Khal Drogo, who was possessed by a soul from another world who was familiar with the Song of Ice and Fire. He became the father of the dragon. The king on horseback rode a dragon and let you witness the power of the dragon. The above is my personal recommendation. I sincerely hope you like it ~