Their relationship could be developed through shared challenges outside of the village. For example, they could go on a diplomatic mission together to a far - off land where they face cultural differences and political intrigue. They'd have to rely on each other more than ever.
A more complex way to develop their relationship is to introduce a moral dilemma that only they can solve together. Maybe there's a situation where they have to choose between the safety of the village and the life of an old enemy who has turned over a new leaf. This would make them question their values and beliefs and in the process, strengthen their bond as they work through the difficult decision.
Their relationship would be one of mutual respect. Naruto, as Hokage, would trust Sasuke's abilities as an Anbu member. Sasuke, on the other hand, would respect Naruto's leadership. They would be comrades again, but with a new dynamic due to their different positions in the village.
Their relationship can be developed by showing them facing challenges together. For instance, when Naruto has to make tough decisions as Hokage, Hinata can be there to support him morally. And when Hinata has to deal with her family's expectations, Naruto can encourage her to follow her own path. This mutual support can deepen their connection.
One possible scenario in such a fanfiction could be Naruto as Hokage having to deal with political situations in the village while Sasuke, as an Anbu, is sent on dangerous covert missions. Naruto might rely on Sasuke's intelligence and combat skills from his Anbu work to protect the village from external threats. They could also have some internal conflicts due to their different roles and the secrecy associated with Sasuke's Anbu work.
A really interesting fanfiction idea could be that Sasuke in the Anbu discovers a conspiracy within the village that even Naruto as Hokage is unaware of. Sasuke then has to decide whether to go to Naruto directly or investigate further on his own. This would create a lot of tension and drama, as Sasuke's loyalty to the village and his relationship with Naruto are both at stake.
In the fanfiction, Naruto's jealousy might lead to him trying to outdo Sasuke in non - ninja ways too, like helping the village more or making more friends. Sasuke, observing this, might start to envy Naruto's popularity and positive attitude. This role - reversal of sorts could create a more complex and interesting dynamic between them, forcing them to confront their feelings about each other and ultimately grow closer as friends and comrades.
Their relationship can be developed through shared experiences. For example, going on dangerous missions together. Each time they face a new threat, they learn more about each other's abilities and personalities. Naruto's positive attitude can slowly break down Fem Sasuke's more reserved nature.
Well, in some fanfictions, instead of the typical rivalry starting early, Naruto could be like an older brother figure to toddler Sasuke right from the start. He could teach Sasuke simple things like how to climb a tree or catch a fish, which would build a strong bond of trust and friendship between them.
One great fanfiction could be 'The Bond Beyond'. It delves deep into the relationship between Naruto and Sasuke after Naruto becomes Hokage. It shows how they work together to face new threats to the village. The story has great character development and really captures the essence of their friendship and mutual respect.
In many time travel fanfictions, their relationship often becomes more understanding. Since they already know each other well in the future, when they travel back, they can skip the initial hostilities. For example, if they go back to their academy days, Sasuke might not be as cold to Naruto as he was originally because he already knows Naruto's true nature and what they will go through together in the future.
Their relationship could become more of a partnership. With Naruto as Hokage, Sasuke might be more willing to work within the village's framework. They would still have their friendly rivalry, but it would be more focused on making the village better.