Well, in fanfiction, anything can be possible. Maybe it could be through some sort of multiverse or magical crossover event. A wizard or a powerful being could have messed with the fabric of reality and made Naruto the son of Thor. It's a wild concept but that's the beauty of fanfiction, it allows for such out - of - the - box ideas.
In this type of fanfiction, it might be possible if there was some sort of interdimensional travel involved. Thor could have ended up in the Naruto universe and had a relationship with a character there, resulting in Naruto being his son. Another way could be that the gods in the Naruto world are somehow related to the Norse gods, and Thor was chosen to father Naruto for some grand plan.
One way this could work in the fanfiction is if there was a powerful being or artifact that manipulated genetics or destinies. This being could have decided to combine the power of Thor, an Asgardian god, with the potential of Naruto from the ninja world. So, Naruto being Thor's son would mean he has both the power of chakra and the might of Asgardian powers like lightning manipulation, which would make for a very exciting and unique story.
One possibility could be through some sort of magical or other - worldly intervention. Maybe a powerful magic user in the Harry Potter universe, like Albus Dumbledore, unknowingly creates a rift that connects the Asgardian realm to the wizarding world. And through this rift, some sort of strange magic causes Thor and Loki's essence to combine with a human, resulting in Harry being born. However, this would be a very convoluted and out - of - the - box explanation.
He would probably have some amazing powers. He might be able to control lightning like Thor, on top of his existing ninja skills. His appearance could also be different, maybe having some Norse - like features. And his story would be more epic, with a connection to the Norse gods.
Well, in a fanfiction world, anything can happen. Maybe Naruto discovers some Asgardian magic or meets Thor in a cross - dimensional event. This could lead him to become a huge fan of Thor, being inspired by Thor's strength and noble character.
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 plotline could be Naruto discovering his true heritage as Revan's son and having to deal with the new powers that come with it. Maybe he has some latent Force abilities in addition to his chakra.
Well, it's likely that we'll see Naruto's sensei, Jiraiya, in this fanfiction too. He could have known about Naruto's 'son of nature' aspect all along and left some clues or teachings for Naruto to discover later. There could also be some ancient shinobi who had a similar connection to nature in the past and their spirits or legacies could play a part. And don't forget the animals! Maybe a giant eagle or a group of intelligent foxes could be characters that assist Naruto in his adventures related to his nature - based powers.
One possible antagonist could be Orochimaru. He's always been interested in powerful and unique abilities. Naruto's new powers as the son of doomsday would be very appealing to him, and he might try to capture Naruto to study or steal his powers.
A possible plot could revolve around Kakashi's team members' reactions to Naruto being his son. For example, Obito's spirit (if it has any influence) might have mixed feelings. And in the story, Naruto might inherit some of Kakashi's unique abilities in a more natural way than in the original series. The fanfiction could also explore how the Akatsuki views Naruto differently, knowing he is Kakashi's son, and how that affects their plans to capture the nine - tailed beast within him.
In this 'naruto son of thor fanfic', the plot might revolve around Naruto learning about his new heritage as Thor's son. He could go on a journey to Asgard to understand more about his father's world. There, he might face challenges from the Asgardian gods who are skeptical of a half - human, half - Asgardian like him. And he has to prove himself worthy while still maintaining his ties to the Hidden Leaf Village.