Perhaps in the fanfiction, Naruto's child has some unique abilities that Naruto has to figure out how to handle on his own. He could be seeking advice from his old friends like Sasuke or Sakura, but ultimately having to make the parenting decisions by himself. And there could be a story where Naruto's single - father status is a secret for a while, and he has to keep it that way to protect his child from potential threats in the ninja world.
A really interesting storyline could be Naruto as a single father raising a child who doesn't have the typical ninja abilities. Naruto then has to find a way to make the child feel accepted and valuable in a world that highly values ninja skills. He might also have to deal with the child's longing for a mother figure, and Naruto tries to fill that role as best as he can while still being a father.
One possible storyline could be Naruto struggling to balance his ninja duties with raising his child alone. Maybe he has to take the kid on missions sometimes, teaching the little one about the ninja world along the way. Another could be Naruto dealing with the judgment of the village as a single father, showing how he overcomes that and still raises a strong and kind - hearted child.
One possible storyline could be Harry struggling to balance his work and taking care of his child. Maybe he has a job that requires long hours, like being a wizard in a high - demand magical profession, and he has to find creative ways to be there for his kid. For example, he might use magic to cook dinner quickly or create a magical babysitter when he's really in a bind.
One possible storyline could be that Naruto's child in the fanfiction inherits some of his unique powers, like the Nine - Tails' chakra. And they have to learn to control it, with Naruto guiding them. Another could be that the child gets into trouble in the ninja world and Naruto has to use his influence and skills to protect them.
Perhaps the story could involve Harry's child having special powers or a prophecy attached to them. Harry, as a single father, would then be extra protective and determined to keep his child safe from those who might want to use their power for evil. He'd have to rely on his friends, like Hermione and Ron, for support in both parenting and protecting the child.
One possible storyline could be that Naruto is forced into fatherhood due to some sort of political arrangement. For example, a village in need of an alliance might demand that Naruto have a child with a princess from their village. Naruto, being the selfless hero, would accept this for the sake of peace. He would then struggle to adjust to this new role while still having his duties as a ninja. He might initially be clumsy at parenting, but gradually learn and grow into a loving father.
One common storyline is Luke trying to balance his diner business with raising his child. He might have to deal with finding reliable babysitters or having his child at the diner during busy times. Another storyline could be his child getting involved with the other kids in Stars Hollow and Luke having to navigate the relationships and potential rivalries. For example, if his child has a crush on someone, Luke has to give advice while also being protective.
Perhaps Percy is a single dad because his partner was lost in a battle against the Titans or some other great evil. In the fanfiction, he could be dealing with the grief of that loss while still being a great father. He might take his child on adventures around the places he used to go as a teen demigod, like the Labyrinth, but this time it's to teach his child about their heritage and how to survive in a world full of mythological threats.
In some 'naruto is a father fanfiction', there could be a story where Naruto's child has a unique power that no one in the village has seen before. Naruto, as a father, has to protect the child from those who might fear or want to use this power for their own gain.
One possible storyline could be Clint training Peter in archery skills. Since Clint is known for his archery, he could pass on his expertise to Peter, and they could go on adventures together where Peter uses these new skills.
There might be a fanfiction where Naruto becomes a single father because of some unforeseen circumstances during a mission. He then has to teach his child the ways of the ninja world while dealing with his own emotional turmoil. This could explore how Naruto's past experiences shape his parenting style.
One common theme is the struggle of balancing ninja duties and fatherhood. Naruto has to be out there protecting the village but also be there for his child.