Another plot could revolve around the Sixth Hokage's relationship with the other villages. He might be trying to form a new alliance to counter a greater, shadowy enemy that all the villages are unknowingly threatened by. This would require him to travel to different villages and deal with their unique politics and power structures.
One idea could be focusing on how the Sixth Hokage deals with new threats from outside the village. For example, a long - lost clan with a powerful and dangerous jutsu resurfaces. The Sixth Hokage has to use both diplomacy and strength to handle the situation.
Maybe the fanfic could explore the internal changes in the village under the Sixth Hokage. He could be implementing new training programs for the younger ninjas. This would involve him facing resistance from the more traditional ninja families who are used to the old ways.
One idea could be Naruto facing a new and powerful enemy that challenges the very foundation of the Hidden Leaf Village. This enemy might be a rogue ninja with a grudge against Naruto for becoming the Sixth Hokage. Another plot could involve Naruto trying to implement new policies in the village but facing opposition from the traditionalist shinobi. For example, he might want to change the way chunin exams are conducted to be more inclusive, but the old - school ninja don't like the changes. Also, a plot could revolve around Naruto having to deal with a mysterious disease that is affecting the ninja in the village and he has to find a cure while still maintaining his duties as Hokage.
One idea could be exploring how the Sixth Hokage deals with the remaining threats from the Akatsuki. Maybe some members who were thought to be dead actually survived and are plotting revenge. Another could be focusing on the internal politics of the village. As the Sixth Hokage, there would be a lot of pressure to make decisions that satisfy different clans and factions within Konoha. Also, the Hokage could be involved in training a new generation of ninja with unique abilities, passing on the wisdom and skills Naruto has taught him.
Well, in a 'naruto the sixth hokage fanfic', it could explore Naruto's relationships in this new role. Maybe it shows how he interacts with his old friends like Sasuke, who might have a role in supporting or challenging him. It could also involve new threats to the village that Naruto has to deal with as the Hokage, and how he uses his unique skills and leadership to overcome them. Additionally, it might delve into the internal politics of the village and how Naruto navigates through them.
A really interesting plot could be Naruto traveling back in time to the era before he was born. He could meet his parents and other important figures in the village's history. This would give him a chance to understand the roots of the village better and also learn some new jutsu or strategies that he could bring back to his own time to make the Hidden Leaf even stronger as a Hokage.
Maybe the new Hokage is faced with a crisis within the village. For example, there is a rift between different ninja clans, and the Hokage has to use his/her diplomatic skills to bring peace. They could start by holding clan meetings and listening to each clan's concerns.
One idea could be exploring the Godaime Hokage's early days in the role. Maybe she has to deal with a new and unexpected threat to the village that tests her leadership in ways she hadn't anticipated. Another could be a story where she has to make a difficult decision regarding the future of a young ninja with a troubled past, balancing the village's safety and the ninja's potential.
One idea could be that the Sixth Hokage has to deal with a new threat from a long - forgotten clan. This clan has a special jutsu that can disrupt the chakra flow in the village. The Sixth Hokage then has to find a way to counter this jutsu, perhaps by seeking help from an old hermit who knows about ancient chakra techniques.
One idea could be a fanfic where the 7th Hokage, Naruto, has to face a new and powerful enemy from a hidden land that was previously unknown. This enemy has a unique jutsu that can nullify Naruto's chakra. Another idea is a story about Naruto's daily life as Hokage, dealing with the paperwork while also trying to find time for his family.
Sasuke could be a great choice. He has powerful abilities and a complex past. His experience as an avenger and then his redemption arc gives him a lot of depth. He has also learned from Naruto and has a different perspective on leadership. He could bring a more strict and strategic approach to being Hokage compared to Naruto.
Another plot could involve Naruto and Hinata dealing with a new threat to the village that specifically targets their family. They must protect their children and the village while also maintaining their relationship. This could include Hinata using her Byakugan in new and creative ways to help Naruto in his leadership role.