One possible plot could be Naruto, suddenly finding himself in Madara's body, tries to use his own values to change the course of history. He might prevent some of the darker events Madara was involved in, like the Uchiha massacre. He could also try to use Madara's power in a more positive way, for example, to bring about peace between the villages much earlier.
Naruto's optimistic and determined personality would have a huge impact. He would not be as easily swayed by power and revenge as Madara. So, he might not go along with the plans to create chaos. Instead, he'd strive for peace and unity. For example, he'd probably try to make the Uchiha feel more included in the village, preventing their discontent and subsequent actions.
Fanfiction often plays with the concept of Naruto and Madara's bodies in different ways. For example, there could be a story where Madara's body is resurrected but with Naruto's spirit or chakra influencing it. This would create a unique blend of their personalities and abilities, and it might change the entire Naruto universe as we know it. It could also be a way to explore redemption arcs or new alliances in the fan - created storylines.
One common theme is redemption. Madara, who was often seen as a villain in the original story, may get a chance to redeem himself through the time travel. Another theme is changing the past to fix the future. Since they can go back in time, they might try to prevent certain tragedies like the Uchiha massacre or the destruction caused by the Great Ninja Wars.
A possible interesting plot could be Naruto using Madara's body to face off against the Akatsuki. They might be confused as to why 'Madara' is acting so differently.
Power alteration is another theme. Since Naruto has knowledge from the future, he can change how power is distributed in the past. In some fics, this leads to a whole new power structure in the Naruto world. Also, the theme of friendship across time is quite popular. Naruto and Madara, who were enemies in the original story, form a bond in the time - travel scenarios. This bond can range from a grudging alliance to a deep friendship, depending on the fic.
One popular 'Naruto x Madara time travel fanfiction' is 'The Time - Twisted Bond'. It has an interesting plot where Naruto travels back in time and forms an unexpected alliance with Madara. The story is filled with intense battles and character development.
There are quite a few out there. 'Time - Twisted Fates' is another one. In this fanfic, Hashirama and Madara are both sent back in time by a strange jutsu gone wrong. It shows their struggle to deal with the knowledge they have of the future while trying not to disrupt the past too much. The descriptions of the ninja world in the past are really vivid.
Well, initially, Madara would probably view female Naruto as a nuisance. But as they travel through time, they would be forced to rely on each other. Female Naruto's determination and unique abilities would gradually earn Madara's respect. Their relationship might then turn into a sort of mentorship, with Madara sharing his combat knowledge and Naruto sharing her ideas about unity. Eventually, they could form a bond that is a mix of friendship and mutual respect, but it would take a long time and many shared experiences for this to fully develop.
One popular 'naruto and madara time travel fanfiction' is 'Time's Twist'. In this story, Naruto and Madara are sent back in time due to a strange jutsu gone wrong. It's really interesting to see how they interact with the past versions of themselves and other characters. Another one could be 'Back in Time with Naruto and Madara' where they have to change certain events in the past to prevent a future disaster.