Obviously Naruto would be one of the main characters. And there could be some original characters created specifically for this fanfiction related to the chaos dragons, like a dragon rider who teams up with or opposes Naruto.
Another possibility is that the main character is a sensei or an elder in the ninja village who has knowledge about the Chaos Release. They guide the younger generation in understanding this power. In some fanfictions, it could be a group of characters, each with their own relationship to the Chaos Release, working together or against each other depending on their goals.
Obviously Naruto would be one of the main characters. But depending on the story, there could be other characters like Sasuke, Sakura, or even some original characters created by the fanfiction author.
Well, it's possible that some new or less - known characters from the Naruto universe could become main characters in 'chaos naruto fanfiction'. For example, Rock Lee could take on a more central role. He has always been a character full of determination and unique fighting style. In a chaotic setting, his strong will could be a key factor in dealing with the chaos. And then there are the jinchuriki of the other tailed beasts who might be more prominently featured as they are all related to the power dynamics in the Naruto world which could be thrown into chaos.
It's hard to say for sure without reading it, but it could be Naruto and his friends. They are the main characters in the original series, so it's likely they'll play important roles in this fanfiction as well, perhaps trying to combat the chaos.
Often, Naruto himself is likely to be one of the main characters. He might be drawn to the power of the Blades of Chaos and try to use them for the good of the village.
Obviously Naruto would be one of the main characters. There might also be his usual friends like Sasuke and Sakura. But since it's a fanfiction about him being the heir of chaos, there could be new characters introduced who are related to this chaos aspect, like some ancient beings or a secret clan.
Obviously Naruto would be one of the main characters. He's the protagonist of the original Naruto series and would likely be at the center of any fanfiction involving the Chaos King. The Chaos King himself is another main character, as the title implies. And Sakura might also be a main character as she is often part of Naruto's group and could play an important role in dealing with the chaos caused by the Chaos King.
Maybe Akainu from One Piece (in a crossover sense within the fanfiction). He could be warped into this Naruto - Dragon Slayer world and his extreme sense of justice could be twisted into a form of tyranny. He sees the chaos and magic in this new world as a threat that needs to be eliminated, and in his overzealousness, he becomes the main antagonist, causing destruction and pitting the ninjas and dragon slayers against him.
In this fanfiction, Naruto is the central figure as he is the so - called son of chaos and order. His friends are likely to be main characters too. Sasuke, for instance, could be a key character as his relationship with Naruto often drives the story in the original series. Sakura might also play a significant role. Additionally, there could be some sort of deities or powerful beings representing chaos and order that interact with Naruto throughout the story.
Well, aside from Naruto's usual comrades, there could be new characters introduced. Maybe some ancient sages or demons who are either attracted to Naruto's new chaotic status or are trying to take advantage of it. And of course, the kages of the different villages would play significant roles as they would be directly affected by Naruto's actions as the 'god of chaos'.