Yes, there are. I'll recommend a few to you. The first one was "Time Travel Begins with Dragons and Snakes." The main character was a martial arts expert who stepped into different worlds. There was also "The Heavens Begins from the Heaven Sword and Dragon Sabre". The protagonist could traverse the heavens and change his physique, cultivating the innate sword and shield. Finally, there was "Great Tang". Although it was not a specialized transformation novel, the protagonist could also use a cheat to sweep through the army, which was enough to satisfy your needs for transformation. I hope you like this fairy's recommendation. Muah ~😗