Naruto's relationship with Kisame might become an interesting one. At first, Kisame would likely be very suspicious of Naruto. But as time goes on, Naruto's determination and strength could earn Kisame's respect. With Itachi there, he might be more open - minded towards Naruto. As for Kakuzu, Naruto would probably constantly clash with him due to Kakuzu's money - loving nature. Naruto would try to convince him that there are more important things than wealth. And with Sasori, Naruto would be horrified by Sasori's use of human puppets and would try to make him see the value of human life.
Naruto's ideals of friendship and peace would likely clash with the Akatsuki's goals. His presence could make some members question their motives. For example, he might try to convince them that there are better ways to achieve power than through collecting tailed beasts. His positive attitude could be infectious and start to change the overall atmosphere of the Akatsuki.
Naruto's character would develop in a very complex way. He'd be constantly struggling between his own values and the actions he has to take as part of Akatsuki. His experience in Akatsuki could make him more cynical as he'd be surrounded by people with dark pasts and motives. However, he'd also try to bring out the good in them, which could strengthen his belief in the power of friendship even more. His view of the ninja world would also change. He'd see the other side of the coin, the outcasts and the reasons they became who they are. This could lead to a more nuanced understanding of the world's problems and solutions.
Naruto's relationship with his sensei, Kakashi, would be severely strained. Kakashi has always been a guiding figure for Naruto, and Naruto joining the Akatsuki would seem like a betrayal. However, Kakashi might also suspect that Naruto has an ulterior motive. As for his relationships with the other Konoha ninjas, they would be filled with suspicion and mistrust. But Naruto could also form new relationships within the Akatsuki. He might befriend some of the members who have a bit of good in them, like Konan perhaps, and together they could work towards a new future for the Akatsuki.
Well, in this scenario, Naruto joining Akatsuki would change a lot. Naruto has always been about hope and unity. In Akatsuki, he'd be surrounded by outcasts with different motives. His influence could either sway some Akatsuki members to his side or get him in a lot of trouble. He might try to change Akatsuki from within, to make it less of a villainous organization. But this would be really tough as many Akatsuki members have deep - seated grudges and goals. For example, Nagato might have a hard time dealing with Naruto's presence as Naruto would challenge his view of the world. And Konoha would be in a very difficult situation. They'd see Naruto as a traitor, and it would be a big blow to their morale.
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 could try to change the Akatsuki from within. He might use his positive attitude and strong will to influence the members. For example, he could try to convince Hidan to give up his brutal ways, or persuade Kisame to question the Akatsuki's more extreme goals. Since he has a connection with Itachi, Itachi could act as a sort of protector and guide for Naruto within the organization. Naruto might also learn some new and unique jutsu from the other Akatsuki members, which could change his fighting style.
Naruto could use his shadow clone jutsu to play pranks. For instance, he could make clones that look like the Akatsuki members themselves and have them do really silly things like dance around in circles or sing out - of - tune. The real Akatsuki members would be really confused at first, thinking one of their comrades has gone crazy.
The relationship between Naruto and Sakura would become much more strained yet also more intense. Sakura would be constantly worried about Naruto's safety in Akatsuki. Naruto, on the other hand, would be in a difficult position as he's in an enemy organization but still cares about Sakura and Konoha. His relationships with the Akatsuki members would also be complex. Some might see him as an opportunity, while others might be hostile. Sakura's relationship with the rest of Konoha would also be affected as she tries to support Naruto from afar.
If fem Naruto joins Akatsuki with Itachi, there would be a lot of chaos at first. The Akatsuki members are used to a certain way of doing things. Naruto's positive and somewhat naive nature could disrupt their usual dark and secretive operations. For example, she might try to make friends with some of the more aloof members, like Sasori or Deidara, which could lead to interesting character interactions.
His relationships with his old friends in the Hidden Leaf would become extremely strained. They would see him as a traitor. For example, Sakura might be heartbroken and angry at him. Kakashi would be disappointed. However, within Akatsuki, he could form new relationships. He might become friends with some of the members who have a similar background of being misunderstood. For instance, he could bond with Hidan over their strong beliefs, though their beliefs are very different in nature.