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'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 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.
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.
Well, one thing that could happen is that Naruto's presence in the Akatsuki would create a lot of internal conflict. The Akatsuki members are used to a certain way of doing things, and Naruto's optimistic and friendly nature would be a contrast. He might try to change the Akatsuki from within, perhaps convincing some members to pursue more peaceful goals. And with a female Itachi, she could act as a mediator between Naruto and the more hardcore Akatsuki members. Maybe she has a different perspective due to her gender and would be more open to Naruto's ideas compared to the original Itachi.
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.
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.
I really like 'Itachi's True Intentions in the Akatsuki'. This fanfic delves deep into Itachi's mind and his real motives for being part of the Akatsuki. It gives a fresh perspective on his character and his relationships within the group. It's a must - read for any Itachi or Akatsuki fan.
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.
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.