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.
Well, if Naruto is the father in the 'Hachishaku' fanfiction, perhaps the story could focus on how Naruto tries to give his child a normal life despite his own fame. Or it could be about the child being targeted by Naruto's enemies from his past, and Naruto having to face old foes again to keep his family safe. It could also involve the child going on their own journey to discover their own identity, separate from being Naruto's son or daughter.
In this fanfiction where Naruto is the father in 'Hachishaku', there could be a storyline where the child is born with a special ability that no one has seen before. Naruto then has to figure out how to help the child develop this ability while also dealing with the political aspects of the ninja villages. Maybe there are other clans who are jealous or fearful of this new power in Naruto's family. And the story could also show how Naruto's family life affects his relationships with his friends, like Sasuke and Sakura, as they all grow older.
I'm not very familiar with this specific 'Hachishaku' fanfiction. But in general, if Naruto is made the father in a fanfiction, it could bring a whole new dynamic to the story. It might change the relationships of the characters involved and create unique plotlines centered around Naruto's role as a father.
One possible plotline could be Naruto struggling to come to terms with his new identity as the son of Hachishaku. He might face rejection from some in the village who are suspicious of his new heritage.
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.
In the 'Naruto son of Hachishaku' fanfiction, it could be interesting to see how the story weaves in the elements related to this new parentage. For example, if Hachishaku has certain unique traits or abilities, Naruto might inherit them. It could also lead to new relationships and conflicts within the Naruto universe, as his new origin might be met with various reactions from the other characters.
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.
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 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 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.
One possible storyline could be that Snape secretly tries to guide Harry without revealing his true identity. He might give Harry special potions or spells to help him, all while acting as the strict professor. Another could be that as Harry discovers the truth, he has to deal with a whole new set of emotions towards Snape.
A storyline could involve Naruto using his newfound Nara abilities to solve a mystery in the village. Maybe there's a strange phenomenon that's related to shadow - based jutsu, and Naruto, with his understanding of both Uzumaki and Nara powers, is the only one who can figure it out. He'd have to team up with other characters, and in the process, there would be a lot of character development and interesting interactions.