One possible interesting story could be Naruto facing some sort of political conspiracy within the village that leads to his hokage denial. Maybe some elders or a hidden group want someone else in power for their own motives.
Perhaps in this fanfiction, Naruto has made a big mistake in the past that the village can't overlook, like accidentally endangering the village during a mission. So they deny him the position of Hokage. It could be that he was trying a new and risky jutsu that went awry.
One possible reason could be that some elders in the village still have doubts about his past. For example, his connection with the Nine - Tails. They might fear that this could lead to instability in the village. Another reason could be political intrigue. There might be other powerful clans or individuals who want the position for themselves and manipulate things behind the scenes to deny Naruto.
One possible plot twist could be that the person who denies Naruto has an ulterior motive. Maybe they are being controlled by an enemy ninja who wants to keep Naruto from having power in the village. Another twist could be that Naruto discovers a hidden prophecy that says his true destiny is not to be Hokage but to lead a different kind of revolution in the ninja world.
There might be a 'Naruto 7 Hokage fanfiction' where Naruto has to deal with internal political unrest in the village. Some of the clans might be unhappy with his decisions as the Hokage, and he has to use his diplomatic skills, which he has developed over the years, to resolve the issues and keep the village united.
Another type of fanfiction could focus on the relationships of the 5th Hokage. Maybe a story where she has to balance her duties as Hokage with her personal relationships. For instance, her friendship with other ninja might be put to the test when a decision she makes as Hokage affects them directly. This could explore the more human side of the character and how she copes with the pressures of leadership in the context of her personal life.
The other Konoha 11 members would likely be involved too. They might be split in their opinions. Some would firmly stand by Naruto, while others might be swayed by the village's reasons for denying him. Hinata, for instance, would probably be one of Naruto's biggest supporters and might even try to fight against the decision in her own way.
He might be very disappointed at first. Naruto had always dreamed of becoming Hokage, so it would be a huge blow. But he could also use this as motivation to prove himself even more. He would likely go on some self - improvement journey, training harder and showing the village that they made a mistake.
A great Naruto Hokage harem fanfiction could involve Naruto having a harem that includes some of the Kunoichi from other villages. They come to Konoha to learn from Naruto as the Hokage. This could lead to cultural exchanges within the harem. The different personalities and skills of these Kunoichi, combined with Naruto's leadership as Hokage, can make for a very engaging story.
Well, in some of these fanfictions, there could be unique adventures where Naruto discovers new jutsus that were never shown in the original series. For example, he might learn a time - traveling jutsu which takes him back to the era of the first Hokage. This could lead to him changing some events in the past and having a huge impact on the present ninja world.
One interesting fanfiction could be where Naruto and Hinata work together to rebuild the Hidden Leaf after a major disaster. They use their combined skills and love for the village to make it stronger than ever.
Another great fanfiction could be where Naruto teams up with different Hokages to fight a common, extremely powerful enemy. For example, they all come together to face a new, dark force that threatens the entire ninja world. This would allow for some amazing battle scenes and interactions between characters from different eras.