Well, one major plot change could be in the power dynamics. Since Naruto in Anbu is likely more skilled and experienced. He might take a more dominant role in Team 7's missions. For example, he could quickly assess and handle dangerous situations that the original Team 7 might struggle with. This could also change the relationships within the team. Sasuke might be more competitive towards Naruto, seeing him as an even greater rival. And Sakura might have more admiration or fear towards Naruto because of his Anbu status.
If Naruto joins Team 10 in fanfiction, it could lead to some great comedic moments. Naruto is known for his goofy antics, and mixing that with Team 10's own quirks would be hilarious. He might also introduce some new jutsu and training methods to the team. His Rasengan, for instance, could be something that the others in Team 10 would be interested in learning or at least seeing how it works. This could change the way they approach combat and their own skill development.
Naruto's personality might become more reserved initially. The Anbu experience often makes ninjas keep their emotions in check. So, he might not be as boisterous as the original Naruto. For Sasuke, he could be more on edge around Naruto. He would sense the change in Naruto and feel pressured to keep up. Sakura might become more cautious too. She would see the more serious side of Naruto and might try to be more like him in terms of being focused during missions.
If Naruto joins Team Avatar in fanfiction, it could lead to some really interesting dynamics. Naruto's boisterous and determined personality would contrast with the existing members of Team Avatar. He might teach them some of his ninja techniques, like the Shadow Clone Jutsu. And he could also learn a great deal from the bending abilities of Team Avatar members. Maybe he'd be especially intrigued by Aang's airbending, as it has some similarities to his own agility in combat.
Naruto's abilities would definitely change the SWAT team's dynamics. His superhuman speed and strength would give the team an edge in combat situations. He could quickly take down threats that would normally be difficult for the team to handle.
Well, his relationship would become quite strained. Sasuke might feel betrayed as Naruto was an important part of their dynamic. Sakura would be confused and sad. She had come to rely on Naruto in many ways. Kakashi, as the sensei, would probably feel like he failed Naruto in some way. Naruto's departure would leave a big gap in the team, and there would be a lot of unspoken emotions.
Naruto faces a whole new set of challenges. Firstly, the ANBU has a strict code of conduct which he needs to adapt to. The missions are often solo or with very small teams, so he has to rely more on himself rather than his comrades like in Team 7. Also, the enemies he faces in ANBU are often more powerful and cunning. He has to keep his identity a secret, which is a big change from his more open - natured role in Team 7.
Well, he'd probably bring his ninja skills to the table. His ability to use shadow clones could be used for various tasks like surveillance or combat. He might also teach some of the SHIELD agents his chakra control techniques, which could enhance their physical abilities.
In a 'naruto joins obito fanfic', it could start with Naruto being transported to a parallel dimension where Obito has already started his own ninja village. Naruto, seeing the potential in Obito's ideas but also the flaws, decides to join him. He helps Obito to correct his path. For example, Naruto could teach the ninjas in Obito's village about the importance of hope and not giving in to hatred. They could then work together to build a village that is a model for the rest of the ninja world, based on both Obito's and Naruto's ideals.
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.