Dragon Hunter (2020)

Talented demon hunter Li Xiyuan who was kidnapped by a dragon when he was young and set out on a journey to become a true "Dragon Master". He meets Heilong Sansheng unexpectedly, and at the same time, caught in the emotional entanglement with the two dragons, and is involved in a huge conspiracy. A shocking battle of good and evil that crosses the human and dragon realms quietly

Unfortunately the movie Dragon Hunter is not yet available on HBO Max.