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.
A more light - hearted plot could be Naruto and Hinata taking a vacation from their Hokage duties. They go to a peaceful place and just enjoy each other's company, reminiscing about their past adventures and how far they've come in their relationship. But of course, trouble still finds them even in their time of relaxation.
One idea could be Naruto as Hokage facing a new threat that only Hinata's unique skills can help with. For example, a mysterious enemy that can nullify normal ninjutsu, but Hinata's Byakugan - based techniques are effective. Another plot could be a time - travel fanfic where Naruto and Hinata go back in time and have to prevent a disaster that would change the future of the Hidden Leaf Village. They could also explore their relationship in a different era.
One idea could be Naruto and Hinata going on a secret mission together as Hokage and his wife. They face an unknown enemy that tests their relationship and combat skills. Another could be a story set in an alternate universe where Naruto isn't the Hokage and he and Hinata have a simple, peaceful life in the village, but then a threat emerges that forces Naruto to step up in a different way.
One interesting plot idea could be the challenges they face in ruling the Hidden Leaf together. For example, dealing with political unrest within the village. Another could be Hinata's role in supporting Naruto as he adjusts to the responsibilities of being Hokage. Maybe she uses her Byakugan to help gather intelligence for the village's security. Also, their family life could be explored, like how they raise their children in the midst of their busy lives as leaders of the village.
Another plot could revolve around the family going on a diplomatic mission to another village. Along the way, they encounter various challenges that test their family bonds and ninja skills. For example, they might have to deal with bandits or a natural disaster. They could also learn about the different cultures of the other village and how to make alliances in a more personal way.
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 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.
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 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.