One possible plot is that the 6th Hokage has to deal with a conspiracy within the village. Some of the elders might be secretly plotting against him to regain power. The Hokage then has to use his intelligence and the loyalty of his friends to expose the plot and strengthen his position. He could also introduce new training methods for the young ninjas in the village to prepare them for future threats.
The fanfic might focus on the 6th Hokage's personal growth. He could start off with insecurities but as the story progresses, he overcomes them through various trials. For example, he might have to deal with a powerful rogue ninja who challenges his authority. In the process, he discovers new powers within himself and also learns more about the history of the ninja world. This growth not only makes him a better leader but also a more respected figure among the ninja community.
Sasuke could also be a possibility for the 6th Hokage in the fanfic. He has grown stronger over the years and his unique perspective on the ninja world could bring new ideas to the leadership of the Hidden Leaf. He might start off as a controversial choice but prove himself through his actions in protecting the village and making tough decisions.
One possible plot twist could be that Naruto has to face unexpected opposition from within the village. Some of the elders might not be fully on board with him becoming the 5th Hokage because of his unorthodox ways. They could try to set up various challenges and tests for him to prove his worthiness. Another twist could be that an old enemy resurfaces, specifically targeting Naruto because of his new position as Hokage. This enemy might have some vendetta against the village leadership and sees Naruto as an easy target to strike at the heart of Konoha.
One possible plot could be Naruto dealing with the post - war reconstruction. He might focus on rebuilding the village, strengthening relations with other villages, and also mentoring the new generation of ninjas. For example, he could start new training programs inspired by his own experiences.
In this fanfic, Naruto might bring new policies to the village. He could focus on improving the relations between different ninja clans. For example, he might create more joint training programs for the Uchiha and other clans to heal the old wounds.
A plotline could be Tsunade trying to reform the medical ninja system in the village. There could be corruption or inefficiencies that she wants to address. This would involve her facing opposition from some of the established medical ninja families. She would have to use her authority as the Hokage to push through changes that would ultimately benefit the village in times of war and peace.
One possible fanfic could be about the 5th Hokage, Tsunade, facing a new and powerful enemy that the village has never seen before. This enemy could be a rogue ninja from a far - off land who has a special jutsu that can disrupt the chakra flow in the village. Tsunade would have to use her medical ninjutsu and combat skills to counter this threat and protect the village.
One possible plot could be Naruto dealing with the boredom of retirement. He might try to find new hobbies like gardening in Konoha. Maybe he starts teaching some young ninja in an unofficial way, passing on his unique skills and experiences.
One possible plot could be Naruto facing the challenges of rebuilding the village after a major war. He'd have to deal with political intrigue from within the village, like some clans trying to gain more power. Also, he might focus on training the next generation of ninja to be stronger and more united.
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.
Maybe Naruto travels back to his own childhood days. He could use his knowledge as Hokage to help his younger self become stronger faster. He might also be able to prevent some of the hardships he faced, like not having enough food sometimes. This would not only change his own life but also the relationships he had with people like Iruka - sensei, who took him under his wing when he was a lonely kid.