Perhaps they go on an adventure to find a rare item that young Naruto needs for a special training. Along the way, they face various obstacles and have to work together. Sarada could use her intelligence to figure out puzzles and Bolt his physical strength to overcome barriers. They would also learn a lot about each other and young Naruto during this adventure.
They could have an adventure where they help young Naruto in a mission. Maybe Naruto is outnumbered by some enemies and Bolt and Sarada jump in to save the day. Bolt could use his lightning - style jutsu and Sarada her sharingan - enhanced skills.
Well, in such a fanfic, Bolt and Sarada might be really amazed by young Naruto's determination. Maybe they would see how hard he trains and get inspired to train harder themselves. They could also learn from Naruto's way of making friends, like how he was able to befriend Sasuke even though they were so different at first.
One possible plot could be that they are on a mission together in a dangerous situation. As they face numerous challenges and rely on each other for survival, their bond deepens. In a moment of intense relief after narrowly escaping death, they share a spontaneous kiss. It could be a story about two characters from different backgrounds coming together through shared experiences.
A common theme is friendship. Since they are both from the new generation of Konoha, their bond is often explored. They support each other through various challenges.
They could go on a mission to explore an ancient ruin filled with powerful but dangerous ninja artifacts. Naruto's curiosity would lead the way, while Tsunade's experience would keep them from making fatal mistakes. Maybe they encounter traps that only Naruto's unique skills can solve, like using his shadow clones to test the mechanisms.
Perhaps a fanfic where Bolt and Sarada get transported to an alternate universe. In this universe, they are the only ones who remember their original world and must find a way back while facing many challenges along the way.
He could have adventures in search of rare ingredients. Naruto, with his ninja skills, would be great at traversing difficult terrains to find ingredients that Toriko wants. They might go to places like the Gourmet World, where Naruto would face new and strange creatures.
One possible adventure is that they explore an uncharted planet. Since they are kids, they would be full of curiosity. On this new planet, they might discover strange creatures and new power - ups. The Saiyan girl could use her intelligence to figure out how to deal with the new environment, while Goku uses his brute strength when they face any threats.
Maybe they'd embark on a mission to stop a new threat that's related to Naruto's past. Kid Naruto would be all excited and ready to fight, while adult Naruto would use his wisdom and more powerful skills to lead the way. They could also meet some of Naruto's old friends as kids and have some really fun interactions.
A really cool fanfiction could be set in an alternate universe where Bolt and Sarada are part of a secret organization. They have to work together to uncover a conspiracy that threatens the entire ninja world. They would need to use their unique skills and rely on each other, leading to some really exciting plot twists and character interactions.
Well, they could encounter ancient secrets during their team - up. Maybe they find a lost ninja art that was long forgotten. Itachi's knowledge of various jutsu and Naruto's ability to quickly learn new things would help them understand and perhaps master this new art. And in battles, they would be a formidable duo, using their unique abilities in unison.