In the 'nagato adopts naruto fanfiction', perhaps Nagato adopts Naruto after realizing they both share a similar pain of losing loved ones. Nagato might train Naruto to be stronger, not just physically but also in terms of understanding the cycle of hatred. Naruto could then use this knowledge to try and change the ninja world in a different way than he originally planned.
Well, in this fanfiction, it could start with Nagato finding Naruto alone and vulnerable. Nagato, having a change of heart from his more villainous ways, decides to adopt Naruto. He would introduce Naruto to the Akatsuki in a different light, as a group that could potentially be reformed. Naruto, with his positive influence, might start to change the Akatsuki members' views one by one, all while Nagato is like a father figure guiding him through the complex world of ninjas and their politics.
One possible plot could be that Nagato, seeing Naruto's potential and his kind heart, decides to take him under his wing. He could teach Naruto different jutsus and his unique view of the ninja world. This would change Naruto's growth path as he'd be influenced by Nagato's experiences and beliefs.
Obviously, the main characters would be Nagato and Naruto. Nagato would be in the role of the adoptive father or mentor, and Naruto would be the one being adopted and mentored.
Well, one possibility could be that Naruto discovers his relation to Nagato early on. This might lead to a whole different dynamic in the story. Maybe Nagato would be more hesitant to fight Naruto, and Naruto could try to understand Nagato's pain from a more personal perspective, instead of just seeing him as an enemy. It could also mean that Naruto has access to some of Nagato's knowledge or abilities in a unique way.
One possible plot could be Nagato teaching Naruto his unique jutsu skills. Since Nagato has powerful abilities like the Rinnegan, he could pass on some of that knowledge to Naruto, which would make Naruto even stronger and give him new ways to fight enemies in the story.
One possible plot could be that Nagato and Konan, having had a change of heart after their past experiences, sense a great danger approaching Naruto. They use their unique abilities to fend off the enemies. Nagato with his Rinnegan powers could manipulate gravity and repel powerful attacks, while Konan, with her origami - like jutsu, creates barriers and distractions. Maybe they are trying to make up for their past wrongs by saving Naruto, who represents a new hope for the ninja world.
Well, one possibility is that Ichigo, with his strong sense of justice, takes Naruto under his wing. He could teach Naruto some of his combat skills from the Bleach universe. Maybe Naruto would learn to use a sword in a new and unique way, combining it with his own ninja techniques.
One possible plot could be that Naruto discovers an orphaned child during one of his missions. The child has unique chakra abilities but is shunned by the village. Naruto, remembering his own childhood of being an outcast, decides to adopt the boy. He then trains the boy not only in ninja skills but also in values like friendship and perseverance.
In a 'Madara Adopts Naruto' fanfiction, perhaps Madara adopts Naruto because he sees a kindred spirit in him. Madara might want to mold Naruto into a powerful force to reshape the ninja world according to his own ideals. Naruto, on the other hand, could either resist or be influenced by Madara's views, leading to an internal struggle within Naruto as he tries to balance his own values with what Madara is teaching him.
Well, perhaps Naruto finds Scootaloo in a difficult situation, like she's lost or alone. Naruto, being the kind - hearted hero he is, decides to take her under his wing. He might teach her some of his ninja skills, like how to move quietly or be more perceptive. And Scootaloo could learn a lot from Naruto's never - give - up attitude.
In this fanfiction, perhaps Erza is found by Naruto when she's injured. Naruto takes her back to Konoha. Since he has a big heart, he wants to give her a home. As she recovers, they start to bond. Erza might be amazed by the chakra system and Naruto could be intrigued by her magic. They could then go on adventures together, with Naruto protecting her like a father figure at first, and later they become equal partners.
Well, it could be that Arceus, being a powerful and god - like Pokémon, sees Naruto's potential and decides to take him under his wing. Maybe Arceus helps Naruto gain new powers related to Pokémon abilities. For example, Naruto could learn to use Pokémon moves in his battles against the Akatsuki or other enemies in the Naruto world.