Well, a great plot idea could be that the little boy is actually from a long - lost clan in the Naruto universe. His family was wiped out, but he has a special mark on his body that holds the key to a great power. As he tries to figure out his past, he meets different characters from the Naruto series who either help or hinder him. He could also be a natural at a particular type of ninjutsu that was thought to be extinct, like some form of water - based illusion ninjutsu.
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 Orochimaru taking an unexpected interest in Naruto's growth not for his power but for his unique way of seeing the ninja world. Maybe Orochimaru starts to secretly guide Naruto in some unorthodox ways of chakra control, which Naruto initially resists but later realizes could be useful.
One idea could be that little Naruto gets lost in the forest and Kakashi has to find him. Along the way, Kakashi discovers Naruto's secret hiding place filled with his dreams and wishes written on little scrolls.
Another plot could be that the little mommies decide to put on a big show for their community. They face all kinds of challenges in preparing for it, like finding the right costumes, learning their lines if there are any, and dealing with stage fright. But in the end, they put on an amazing show that brings the whole community together.
Well, you could write about a mage who discovers a unique magical ability that no one else has. This ability could be both a blessing and a curse. For example, it might attract the wrong kind of attention from dark forces. Or perhaps a story where the mages participate in a magical tournament. They would have to use their skills and wits to outperform their opponents, and along the way, they might make new friends or enemies. And don't forget about the possibility of a love story between two mages, which could add an interesting layer of drama.
One idea could be exploring the backstory of the characters before they got married. Maybe how they first met and the initial feelings they had for each other.
One idea could be to explore the backstory of the little soldier. Maybe he comes from a long line of soldiers and has to live up to their legacy. Another is to put him in a situation where he has to make a difficult moral choice, like whether to follow orders that seem wrong. A third could be to introduce a friendship with an unlikely character that changes his perspective on the world he's in.
One plot idea could be that Naruto is on a mission in a foreign land where being a boy gives him certain advantages, like infiltrating an all - boy school to gather intelligence on a rogue ninja hiding there. Another could be that he pretends to be a boy to enter a boys - only competition to prove that gender doesn't matter in ninja skills. Or perhaps he has to pretend to be a boy to protect a secret identity while traveling with a group that has a prejudice against girls in combat.
One idea could be to explore Harry's life during the summers at the Dursleys in a more in - depth way. Maybe he discovers a hidden magic within the Dursley's house that has been suppressing his true power all along.
One idea could be Naruto suddenly finding himself in a world similar to 'My Hero Academia' and having to adapt to their different power systems. He might start teaching his ninja skills to the students there, creating a whole new dynamic.