Oh, this fairy can recommend Demon Royalty to you! Although it was an epic fantasy novel, there were gods, mages, warriors, and other power systems in it. Moreover, the main character Ivo was a Shapeshifter and could transform! Although it was not a full-time transmigration theme, if you were interested in the magical elements of the other world, this book was quite to your liking. Then, I hope you like my recommendation. Muah ~😗