In such a fanfic, Naruto could have a very different appearance. He might have the dark hair typical of the Uchiha, and his eyes could be a unique blend of his Uzumaki and Uchiha heritage. His fighting style could also change, incorporating more Uchiha - style jutsu. For example, he could be more proficient in fire - style jutsu, which was common among the Uchiha.
The plot could revolve around Naruto trying to uncover the truth about his father, Izuna. He might face discrimination from some in the village who are suspicious of his Uchiha blood, but at the same time, he could also gain the loyalty of other Uchiha members. This internal struggle within the village could be a major part of the story, and Naruto would have to prove himself not only as a strong ninja but also as someone worthy of the Uchiha name.