Yes, it could be quite popular. Uchiha is a very important clan in Naruto, and fanfictions related to it often draw a lot of attention. Many fans are interested in exploring different storylines within the Uchiha context, whether it's about their powers, their history, or their relationships with other characters in the Naruto universe.
A 'naruto is an uchia fanfiction' would probably offer a fresh take on the Naruto story. It might start with Naruto having an unknown link to the Uchiha clan. As the story progresses, we could see him interacting with Uchiha characters in new ways. The fanfiction could delve into how Naruto's presence affects the Uchiha, both in terms of their internal affairs and their standing in the ninja world. It could also introduce new storylines related to the Uchiha's power struggle, their redemption, or their future, all while Naruto is at the center of these developments, bringing his own values and abilities into play.
One possible reason could be a miscommunication that escalates out of control. Maybe Sasuke is on a path that Naruto believes is too dangerous for the world, and Naruto, in an attempt to stop him, accidentally kills him. For example, Sasuke might be about to use a powerful and uncontrollable jutsu that Naruto fears will destroy the Uchia compound and much more, so he acts in haste.
For characters like Itachi, if his spirit or some form of his consciousness was still around in the fanfiction, it would be a complex situation. He sacrificed so much to protect Sasuke, and now Naruto killing him would be a huge irony. Itachi might try to influence the events from the afterlife or through some other means. And Hinata, who loves Naruto, would be deeply concerned for Naruto's state of mind. She would try to support him, but also struggle with the moral implications of what he has done.
The Hyuga clan could also be a possibility. Given their strong bloodline and their focus on family and tradition, they might adopt Naruto. They could teach him their Gentle Fist technique. And Naruto could use his unique energy and determination to perhaps improve or modify the technique in some way. Plus, he could help the Hyuga clan with any external threats they face due to their valuable Byakugan.
Fanfiction often takes creative liberties with Naruto clan kinjutsus. Writers may create new variations of existing kinjutsus or even invent entirely new ones. This can add an exciting element to the story, especially when these new kinjutsus are used in battles or to solve complex problems within the fan - created plot.
In uchia x sakura fanfiction, themes like discovery are quite popular. They might discover new powers or new aspects of their world together. Also, the theme of loyalty can be explored. They could be in situations where their loyalty to each other is tested, creating interesting storylines that can range from heart - warming to intense and action - packed.
One challenge would be getting other shinobi to join. Some might be loyal to their existing clans. Also, there could be political opposition in Konoha. The elders might not be too keen on a new clan being formed.
Well, Naruto could start by gathering like - minded shinobi. He's got a lot of friends and allies. Maybe he'd find those who share his ideals about peace and unity. Then, he could start training them in his own unique ninja techniques, which could form the basis of the clan's fighting style.
Naruto would probably start at the bottom of the clan's hierarchy. He is an outsider after all, and the Aburame clan has its own traditions and ways of doing things. But with his determination and strong will, he'd quickly work his way up. His combat skills, even if not related to the Aburame's at first, would earn him some respect. For example, his ability to defeat powerful opponents with his rasengan would show the clan members that he has potential.