One idea could be a fanfic where Danzo actually manages to become Hokage through some underhanded means. Then Naruto has to find a way to expose his true nature and restore the rightful leadership to the village. Maybe he teams up with some of the other shinobi who were also suspicious of Danzo's actions all along.
In a fanfic, Danzo's Hokage - like ambitions could be explored through his relationship with the other villages. He might be more aggressive in foreign relations, which could draw the ire of other ninja villages. Naruto, being the protagonist who wants peace, would then be in a difficult position. He would have to either oppose Danzo's warmongering or find a way to make him see the benefits of peace.
Well, the village would likely be a much more positive place. Naruto is all about friendship and believing in others. He would encourage the ninja in the village to be more open and cooperative. The Hidden Leaf would probably see a rise in morale, with more people feeling included and valued.
The plot would likely revolve around Naruto bringing his own unique brand of leadership. He would try to bridge the gaps between different clans in the village. He might also start diplomatic missions to other villages personally. Since he has friends in other villages like Gaara, he could use those relationships to strengthen alliances. This would lead to a series of adventures where Naruto has to balance being Hokage and still being the hero who jumps into action when needed.
It could also be due to Naruto's outcast status in the village initially. Danzo might think that banishing Naruto would be an easy decision as Naruto doesn't have many supporters at first. He might believe that by getting rid of Naruto, he can maintain the status quo in the village and prevent any disruptions that Naruto's presence might cause in the future.
Shikamaru is another possibility. He is known for his strategic mind. As Hokage, he could use his intelligence to make wise decisions for the village. He may not have the brute strength of Naruto or Sasuke, but his ability to plan and analyze situations would be invaluable in leading Konoha.
There's a fanfic where Danzo tries to manipulate Naruto for his own political gain. However, Naruto, being the perceptive character he is, quickly catches on. This leads to a battle of wits between them. In the end, Naruto uses his own brand of talk - no - jutsu to make Danzo see the error of his ways and they end up working together to reform the village's political system.
In a fanfic where Danzo gives Naruto the Sharingan, it could lead to a very different Naruto. Naruto might gain new abilities and a new perspective on the Uchiha. He could potentially master the Sharingan quickly with his strong willpower, but he would also have to deal with the dark side of the Sharingan, like the curse of hatred that often comes with it.
Perhaps a perk is the ability to shape the future of the ninja world. As Hokage, one can inspire the younger generation of ninjas. They can create new ninja academies or training programs. They also have the power to pardon or punish ninjas according to their deeds, which helps in maintaining law and order in the village.
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.