Naruto himself could be a likely candidate. Given his strength, leadership skills, and his dream of uniting the ninja world, he would make a great 6th Hokage.
In fanfiction, Naruto's rule as the 5th Hokage might be full of positive changes. He would probably focus on improving relationships between the different ninja clans in the village. He'd also likely invest a lot in training the new generation of ninjas, using his own experiences to teach them about perseverance and the importance of friendship.
Sasuke could also be a main character. Even though he has his own path, his relationship with Naruto is so deep that he would surely be involved in Naruto's life as the Hokage. He might offer his support or advice when Naruto faces difficulties. And Kakashi, as Naruto's former teacher and the previous Hokage, could also be a key figure in the story.
In some 'naruto 6th hokage fanfiction', an interesting concept is the relationship between the 6th Hokage and the younger generation of ninjas. The 6th Hokage might be mentoring them in new and unique ways, passing on not just combat skills but also wisdom about peace and co - existence.
Well, if Naruto becomes the 5th Hokage in fanfiction, he would surely bring a new energy to the village. He might start by reforming the ninja training system. Since he had a tough time growing up as an outcast, he'd make sure no kid in the village ever feels that way. He could also focus on better relations with other villages. Naruto's always been about peace and friendship, so he'd probably organize more joint ninja missions with other villages to build trust.
One interesting storyline could be Naruto's journey in adapting to the new responsibilities of being the 6th Hokage. He might face challenges like dealing with internal village politics, which he has never been very interested in before. Another could be how he balances his family life with Hinata and their children while being the Hokage.
The villagers' reaction would be a mix of excitement and some concerns. On one hand, Naruto's popularity among the younger ninjas is huge. His friends like Sakura and Shikamaru would be his biggest supporters and help him in his new role. However, some of the more traditional clans might worry that Naruto's unorthodox ways could disrupt the long - established order in the village. But over time, as Naruto shows his ability to balance his unique style with the responsibilities of the Hokage, they'd come around.
One possible plotline could be Naruto using his newfound time - traveling ability to prevent some of the major tragedies in the past. For example, he might try to stop the Uchiha massacre. He could also use his knowledge from the future to help his younger self become stronger faster, perhaps by teaching him some advanced jutsu he learned later in life.
They still have that deep friendship, but it's more official. Naruto as Hokage respects Sasuke's views on matters related to the outside threats. Sasuke, on the other hand, respects Naruto's leadership. They often meet to discuss strategies and how to keep Konoha and the ninja world in peace. For example, they might plan together how to deal with any potential threats from rogue ninjas or other villages.