I think it's a toss-up. Deku has potential and is constantly evolving, but Naruto's strength and strategic thinking give him an edge. It could come down to the specific circumstances of the fight.
Sasuke could be one. Given their complex relationship, there could be a situation where Sasuke's newfound power or different ideology leads him to fight and beat Naruto in a fan - made story.
😋I have three novels to recommend to you:
1. "Naruto: The Hot-blooded Youth." The protagonist was the younger brother of the young Matte. It was recommended to see how hot-blooded he was!
2. "Revenge against Uchiha Weasel from the night of the extermination." The story of Uchiha Weasel being beaten up by a transmigrator can satisfy your need to beat up Sasuke.
3. In "Naruto: Shura Kagura," the main character, Uchiha Kagura, would neither beat up Sasuke nor be beaten up by Sasuke. He would bring you to experience a different world of Naruto.
I hope you like my recommendation, Mwah ~😗
You can try fanfiction websites such as Archive of Our Own (AO3). It has a large collection of saiki fanfics. There are different genres and styles to choose from.
Nendo could be a great addition. His simple - minded yet loyal nature can add some humor and unexpected twists. For example, he might accidentally almost expose Saiki's powers while trying to be helpful in a situation involving Teruhashi.