Perhaps in the fanfiction, Team 7 is called to a war between two ninja clans. They are there as peacekeepers initially, but things go wrong. Naruto tries to use his talk - no - jutsu to convince the clans to stop fighting. When that fails, Sasuke steps up and shows his combat skills to intimidate the warring sides. Sakura, on the other hand, discovers that there is an outside force manipulating the clans to fight. She then uses her medical skills to save some of the injured from both clans, which helps to ease the tension a bit as they start to realize they are being used.
There could be a new organization that is made up of ninjas from different villages who have banded together with a dark agenda. They aim to take over all the ninja villages and rule with an iron fist. Team 7 has to overcome their combined strength and diverse abilities.
One possible plot could be about the members of Team 7 dealing with the aftermath of the war on a personal level. Naruto might struggle with PTSD from all the battles and deaths he witnessed. Sasuke could be trying to fully reintegrate into the village and mend his relationships. Sakura, on the other hand, might focus on using her medical skills to heal the war - torn land and its people. They could also face new threats that emerged in the post - war chaos.
Maybe John has some unfinished business in the war. He could be seeking revenge for a fallen comrade. So he decides to go back to the battlefield.
A possible plot could be that a new and powerful enemy emerges, forcing Naruto, Sasuke and Sakura to put aside their differences and join the war effort. They start by gathering intelligence about the enemy's strength and weaknesses. Then, they plan their attacks accordingly. Naruto could be the vanguard, using his Rasengan and other powerful techniques. Sasuke would be right behind him, using his Sharingan to anticipate the enemy's moves. Sakura would stay in the rear, healing the wounded and providing support when needed.
One possible plot could be a training session. Team 7, consisting of Naruto, Sasuke, Sakura and Kakashi, might meet Team Minato, which includes Minato, Obito, Rin and Kakashi in his younger days. They could engage in friendly sparring matches. Naruto would be excited to meet his father Minato and learn some new jutsu from him. The two teams could also exchange stories about their adventures, like Team 7 talking about their battles against the Akatsuki, and Team Minato sharing their experiences during the Third Great Ninja War.
A 'Naruto in Team 8 fanfiction' could be about Naruto filling in for a missing member of Team 8. He'd have to adapt to their different fighting styles. Shino could teach Naruto about his bug techniques, and Naruto could teach them some of his Rasengan variations in return. Their mission could be to infiltrate a secret base where Orochimaru is conducting experiments. Along the way, Naruto helps Team 8 members overcome their personal fears and they all grow stronger as a team.
One possible plot could be that Naruto's energetic and determined nature would disrupt the usual dynamic of Team 10. He might introduce new training methods. For example, his love for big, flashy jutsus could inspire Shikamaru to think outside the box in combat strategy, instead of always relying on his shadow jutsu in the simplest way. Naruto could also bond with Choji over their love for food, and they could come up with some food - based jutsu ideas together.
One possible plot could be Naruto being temporarily transferred to Team 10 for a special mission. He might struggle to fit in at first with Shikamaru, Choji, and Ino's dynamic. But over time, he learns their teamwork strategies and they learn from his determination.
One possible plot could be that they face a common enemy that neither the North nor the Night's Watch can ignore alone. Maybe a new and powerful wildling leader has emerged, uniting the tribes in a way that threatens all of Westeros. Jon, with his knowledge of the wildlings, and Robb, with his military leadership skills, join forces to combat this threat.
One possible plot could be Naruto being assigned to Team 10 temporarily. He could bring his unique energy and skills to the team. For example, his Rasengan technique might inspire new ideas among Team 10 members for their own jutsu development. His never - give - up attitude could also influence them during difficult missions, like when they face a powerful enemy ninjas and are on the verge of defeat.