One possible plot could be that Naruto discovers he has some Uchiha blood in him. This revelation would change his perspective on himself and his place in the ninja world. He might then start to train more intensively to master Uchiha abilities.
A plot could revolve around Naruto being adopted by an Uchiha family at a young age. As a result, he grows up with Uchiha traditions and skills. He could face challenges from the rest of the village who are suspicious of his newfound Uchiha connections, but he uses his Uchiha training to prove himself and protect the village.
Maybe Naruto secretly admires the Uchiha's Sharingan ability and tries to learn more about it on his own. He could be collecting information about the Uchiha clan's history and techniques without anyone knowing.
Well, one possibility is that Naruto would be trained in the unique Uchiha techniques. He might learn how to use the Sharingan in ways that no one expected. Also, he could gain a new family within the Uchiha clan, which would change his whole perspective on life and belonging.
Well, one possibility could be that Naruto has a very different upbringing. Since Mikoto is an Uchiha, Naruto might grow up with a deeper understanding of the Uchiha clan's ways. He could be trained in Uchiha techniques from a young age. Maybe he would have a natural affinity for fire - style jutsu. And he might also face different challenges related to the Uchiha's history and the events that led to their downfall. His relationships with other characters like Sasuke would be very different too. Instead of being rivals in the same way, they could be more like cousins with a shared family heritage to protect.
Well, perhaps in this fanfiction, Naruto's grandson of Izuna Uchiha status is kept a secret from him for a long time. When he finally finds out, it causes a stir in the ninja world. He could then be targeted by those who fear the power he might inherit from Izuna. Meanwhile, Naruto has to struggle with his new identity and also deal with the expectations and threats that come with it.
One possible plot could be that in the fanfiction, a villain uses hypnosis on Mikoto Uchiha to make her turn against the Hidden Leaf Village. Naruto, being the hero, has to find a way to break the hypnosis. Maybe he discovers a special jutsu that can counter the hypnosis magic. He then has to face off against the villain while also trying to reach Mikoto and bring her back to her senses.
Perhaps in this fanfiction, Naruto being born an Uchiha means he has a natural rivalry with Sasuke from the start. Since they both have Uchiha blood, they might compete not just for power but also for the right to be the true heir of the Uchiha legacy. Also, his Uchiha lineage could attract the attention of Orochimaru, who might see Naruto as a new vessel with the potential of the Uchiha powers.
One possible plot could be Naruto having to deal with the expectations and the dark legacy of the Uchiha name. He might struggle with the power that comes with being Madara's son. For example, he could have an in - built affinity for powerful Uchiha jutsus like the Sharingan from birth, but also face prejudice from those who fear the Uchiha. Another aspect could be how his relationship with Sasuke changes. Since Sasuke is also an Uchiha, Naruto might have a different dynamic with him, perhaps a more competitive or brotherly one where they both explore their Uchiha heritage together.
The plot might also focus on her relationships. As a fem Naruto who is an Uchiha Jinjuriki, her friendships with Sasuke and others would be different. She might have a deeper connection with Sasuke as they now share the Uchiha heritage in a way. And her relationship with the other villagers would change too. Some might fear her, while others see her as a symbol of hope. She could use her powers to bridge the gap between the different factions in the village.
One possible reason could be a misunderstanding. Maybe Naruto is forced into a situation where he has to take actions that seem like a betrayal to the Uchiha. For example, if there are political forces at play that make Naruto choose between the safety of the village as a whole and the specific interests of the Uchiha clan. Naruto, being a firm believer in the village's unity, might make a choice that the Uchiha perceive as betrayal.
In this kind of fanfiction, one possible plot could be that Mikoto is in danger from an unknown enemy. Naruto, with his strong sense of justice and his powerful ninja skills, somehow discovers her plight. Maybe he stumbles upon a battle where Mikoto is outnumbered and on the verge of defeat. He then jumps into the fray, using his Rasengan or other signature moves to fend off the attackers and save her.