Another scenario could be Nagato time - traveling to a crucial moment in the Fourth Great Ninja War. He might team up with Naruto and his allies, using his powerful Rinnegan abilities in a different way. Instead of causing destruction as Pain, he could help turn the tide of the war. This would be a huge shift in the story, as his presence could change the dynamics of the battles and the relationships between different ninja clans.
In a time - travel Nagato fanfiction, he could travel to the future. He'd be shocked to see how the world has changed. Maybe he'd find that the ninja world has achieved peace through different means than he had envisioned. He could then return to his own time and try to implement some of those future ideas in his own era, like new ways of training ninjas or diplomatic strategies between villages.
One interesting fanfiction idea could be that Team 7 time - travels back to the era of the First Hokage. They could witness the founding of Konoha and interact with the early shinobi. Naruto might be shocked to see how different yet similar the village was in its infancy. Sasuke could gain new insights into the Uchiha clan's history from that time, and Sakura might learn about the early medical ninjutsu practices.
In a time - travel scenario, Nagato could end up in a parallel universe. There, he might find an Akatsuki that is already at peace with the other ninja villages. He could learn from this version of Akatsuki and bring those ideas back to his own universe. This would be a complex and interesting plot, as he'd have to adapt to a different world and then figure out how to implement those changes in his own.
In some fanfictions, Naruto and Nagato might be related through their shared experiences with the ninja world. They both faced great tragedies. Naruto could be seen as a successor to Nagato's ideals in a way. Nagato once wanted peace through force, but Naruto shows that peace can be achieved through understanding and forgiveness.
One possible scenario in such a fanfiction could be that Jiraiya's son discovers a forbidden jutsu that allows him to time - travel. He decides to go back in time to prevent some great tragedies in the Naruto world. He might try to stop the Uchiha massacre, which would change the whole dynamic of the story. This could lead to different alliances and power structures, as Sasuke wouldn't have the same motivation for revenge.
In this type of fanfiction, the time travel might be a result of a forbidden scroll or an experiment by a rogue ninja. When Naruto and Sasuke go back in time, their relationship is different from what it was in their original time. The kiss could be a turning point where they start to understand their feelings for each other on a deeper level, perhaps realizing that their bond is stronger than just friendship or rivalry.
One possible story could be that Team Minato time travels to the future. They would be amazed by the technological advancements. Naruto might be excited to see how the village has grown. They could also learn new jutsu from the future ninjas and take that knowledge back to their own time to strengthen Konoha.
One possibility is that there was some sort of spiritual or chakra - based connection between Naruto and Nagato. Nagato, being the possessor of the Rinnegan, recognized Naruto's strong will and the fact that he was on a path to change the ninja world for the better. Through this connection, Nagato was able to transfer the power of the Rinnegan to Naruto. It could also be related to the nature of the Sage of Six Paths' power that was somehow involved in this transfer, as both Naruto and Nagato were related to the Sage in different ways.
In some fanfiction concepts, there could be a spiritual or mental connection established between Naruto and Nagato. Since Naruto has this unique ability to understand and connect with people on a deep level. Through this connection, Nagato might pass on the power of the Rinnegan to Naruto. It could be like a transfer of not just the physical power but also the knowledge and understanding that comes with the Rinnegan.
In these fanfics, Nagato may help Naruto on an ideological level. Nagato once believed in a very different way of achieving peace. By sharing his journey and how he came to realize the flaws in his thinking, he can guide Naruto in his pursuit of true peace. Nagato could also use his influence over the Akatsuki remnants to prevent them from causing more chaos, which in turn helps Naruto in his mission to protect the ninja world.
Yes, there are some interesting 'Naruto is Nagato' fanfictions. You can find them on popular fanfiction websites like FanFiction.net or Archive of Our Own. Some of these fanfictions explore unique storylines where Naruto has a connection or even an identity swap with Nagato, which can be really fascinating.