I recommend "Muye: Super Saiyan" and "One Punch: Glasses Hero" to you. They are both light novels and derivative doujinshi novels. "The Super Saiyan of the Wood Leaf" told the story of the protagonist Naruto crossing into the Naruto world, opening the all-rounded comprehensive comic system, becoming a Super Saiyan, integrating various abilities, and traveling through the universe. The story of "One-Punch Glasses Hero" was about a person who had transmigrated into One-Punch Superman's walk-on hero glasses and was determined to become the strongest hero. I hope you like this fairy's recommendation. Muah ~😗