A plot could involve Naruto being sent on a special mission where he has no backup and has to rely solely on his own skills. Along the way, he meets different challenges that force him to innovate and combine his skills in new ways. He could also meet some strange creatures or characters that help him to further develop his 'one man band' abilities.
Perhaps Naruto discovers a hidden power within himself that allows him to perform all the functions of a team alone. He uses this power to take on a powerful enemy single - handedly and prove his worth. For example, he might be able to create clones that can perform different types of jutsu simultaneously, like one clone for taijutsu, one for ninjutsu and one for genjutsu.
One idea could be that Naruto and Hinata form a band together with their friends. They start off small, playing at local events in Konoha. As they gain popularity, they face challenges like rival bands trying to undermine them. Another plot could involve Hinata writing lyrics inspired by her feelings for Naruto, which adds a deeper emotional aspect to their music.
Maybe the boy band is formed as a way to promote peace between the different ninja villages. Each member from a different village, like Sasuke from Konoha, Gaara from Suna, etc. They travel around performing and sharing their stories of how they overcame differences, which helps in building better relations among the villages.
One idea could be exploring the backstories of each member of the Band of Seven in more detail. For example, how they came together and what their individual motives were before joining the group.
Well, for the 'naruto the masked man fanfiction', you could have a plot where the masked man has a secret ability that only Naruto can help him control. This could lead to a unique bond between them. Or perhaps the masked man is from a different dimension and got stuck in Naruto's world, and his actions are a result of trying to get back home. Also, a story where the masked man is a time - traveler and is trying to prevent a future disaster in Naruto's world could be really interesting.
One interesting plot idea could be a story where only male characters from Naruto have to survive in a post - apocalyptic Konoha. They would have to rely on their ninja skills in new and extreme ways. Another could be a story about a group of male ninja forming an all - male secret society within the village with their own unique code and goals. And a third could be a tale where male Naruto characters are transported to a different dimension and have to find their way back home while facing strange new enemies.
Maybe an OC who is a sniper. The plot could revolve around their training, how they hone their skills, and the intense pressure they face during missions. They might have a personal vendetta against a particular enemy sniper, leading to a tense cat - and - mouse game throughout the story.
One idea could be that Naruto is somehow transported to New York City and meets Spider - Man. They team up to fight a common enemy like a group of ninjas who have also been brought to the city by some sort of magic or science experiment gone wrong. Another plot could be that Spider - Man gets some of Naruto's powers and has to learn how to control them while still dealing with his normal life in the city. Maybe the symbiote from Spider - Man's story could combine with some of Naruto's chakra and create a whole new kind of threat that they have to face together.
In the fanfiction, the cell could be a source of great power but also a curse. It slowly starts to take over Naruto's mind. He has to fight against its influence while also dealing with the Akatsuki who want to capture him and use the power of the cell for their own evil purposes. Naruto would have to rely on his friends and his inner strength to overcome both the threat of the Akatsuki and the cell's dark influence.
One idea could be to crossover with a medical drama like 'Grey's Anatomy'. The characters from Red Band Society could interact with the doctors in Grey's, learning new medical techniques and sharing their own experiences as young patients. This would bring a fresh dynamic as the more experienced doctors deal with the spunky and determined Red Band kids.
One idea could be that the Akatsuki from Naruto are somehow connected to the Noah family in D Gray - Man. Maybe they are both after a powerful and ancient artifact that has the power to change both worlds. Another plot could involve Naruto characters having to deal with Innocence and Akuma in the D Gray - Man universe. For example, Naruto's chakra could be seen as a similar power source to Innocence and he has to learn how to use it to fight the Akuma.