One possible plot could be that Naruto, feeling betrayed by Konoha after banishment, decides to join Akatsuki. He might initially be an outcast even within the Akatsuki, but gradually gains their respect with his powerful jutsu. He could use his new position to try and change Akatsuki from within, aiming to stop the more extreme members from their plans of world destruction.
His relationship with Sasuke would become even more complex. Sasuke might see Naruto's joining of Akatsuki as a betrayal or a sign that Naruto has finally given up on Konoha. Naruto's old friends in Konoha, like Sakura and Kakashi, would be very confused and hurt. They might try to bring him back, but also be wary of his new Akatsuki ties. And within Akatsuki, Naruto would have to navigate relationships with members who have different motives and personalities, some of whom might not trust him at all.
One possibility is that Naruto joins Akatsuki to change it from within. He might think he can stop their more evil plans while also learning more about his own powers and the secrets of the ninja world that Akatsuki seems to be involved in.
Well, if Naruto joins Akatsuki in fanfiction, perhaps it's because he's disillusioned with the Hidden Leaf Village for some reason. Maybe he feels betrayed by them. In Akatsuki, he could form unexpected alliances. For example, he might bond with Hidan over their shared brashness in a way, and together they could influence the direction of Akatsuki's actions.
Maybe Naruto joins the Akatsuki with the intention of spying on them for Konoha. He could pretend to be on their side while secretly sending information back to his village. This would add a lot of tension and secrecy to the story as he has to constantly be careful not to be discovered.
If Naruto joins the Akatsuki in fanfiction, he could try to change the organization from within. He's a very empathetic person. He might see the pain and reasons that led some of the Akatsuki members to become what they are. For example, he could try to convince Sasuke to leave the Akatsuki if he's there. He could also try to make the Akatsuki less violent and more focused on finding a real solution to the shinobi world's problems.
In a fanfiction where Naruto joins the Akatsuki, there could be a lot of interesting character interactions. He would be in close quarters with villains like Sasori or Hidan. Naruto might try to learn more about their pasts and what led them to become members of the Akatsuki. This could also cause a rift in his relationships with his old friends in Konoha. They might see him as a traitor, while Naruto is actually trying to bring about change in the Akatsuki for the greater good.
Well, in this fanfiction, perhaps the female Naruto joins the Akatsuki because she is on a mission to find out the truth about some secrets related to her family. She thinks the Akatsuki might have some clues. Once she joins, she has to face challenges like dealing with the different personalities in the group, such as Sasori who is cold - hearted and Deidara who is impulsive. But she uses her strong will and ninja skills to survive and continue her search.
Well, perhaps Naruto is heartbroken after losing someone dear, like Sasuke leaving again. He feels betrayed by the Hidden Leaf. In his despair, the Akatsuki approaches him, offering a sense of belonging and a new purpose. They might convince him that the Leaf is corrupt and that their goals, which could be about changing the ninja world in a more radical way, are worth joining.
Well, one possible plot could be that Naruto, disillusioned with the Hidden Leaf Village after some major betrayal. He might start to see the Akatsuki's goals in a different light. For example, if the village wrongly accuses him of a crime he didn't commit, like they did with Sasuke in some ways. He could then be approached by an Akatsuki member who offers him a place in the group where he feels he can be understood. And Naruto, in his search for a new purpose and a place to belong, decides to join.
One possible plot could be that Naruto, disillusioned with the Hidden Leaf Village for some reason, like being wrongly accused or feeling betrayed. He then decides to join the Akatsuki. He might bring in new jutsu and a different way of thinking to the organization. His goal could change from protecting the village to perhaps finding a new way to bring peace in a more radical way.