One common theme could be identity exploration. Given the title's mention of'mixed blood' and 'heritage', characters might be on a journey to figure out who they are.
I'm sorry I can't directly recommend specific 'Mixed Blood and His Heritage' fan fiction as there are so many out there and I don't have a comprehensive list. You can try searching on fan fiction websites like Archive of Our Own or FanFiction.net.
The fanfic could develop the concept by exploring the cultural aspects of the banished heritage. Maybe there are unique traditions, languages, or ways of thinking that come with it. Naruto then has to learn and adapt to these aspects, which in turn shapes his identity as a ninja. This could lead to new story arcs where he uses the knowledge from his heritage to overcome challenges or make new allies.
One possible reason could be the burden that comes with his heritage. Naruto's heritage is filled with great power and responsibility. Maybe he feels that he can't live up to the expectations of his clan or predecessors, so he rejects it.
Maybe he's been influenced by someone who has a different view of heritage. For example, if he meets a character who believes that one should create their own identity rather than relying on heritage, Naruto could be swayed. Another possibility is that he has some sort of resentment towards his heritage. Perhaps there are things in his family's past or in the traditions associated with his heritage that he doesn't agree with or is ashamed of.
He might feel angry and frustrated. Naruto has always been proud of his potential and his roots in some way. Being denied his heritage would be like taking away a part of his identity, so he'd likely be quite mad at those who are doing the denying.
One possible plot twist could be that his heritage is linked to an enemy he thought was unrelated. So he has to reevaluate his views on the whole conflict.
In the fanfiction, when Naruto learns of his heritage, he often becomes more confident. Knowing where he comes from gives him a sense of purpose. He might start to train harder, believing that he has a greater destiny due to his lineage.
Well, it could strengthen his bond with some characters. For example, he might feel a closer connection to his clan members if he discovers his heritage. He could also gain new respect from his peers who now see him in a different light, perhaps as a more important figure within the village due to his lineage.
Well, 'naruto heritage fanfiction' could be about exploring the heritage and lineage within the Naruto universe. It might involve stories that focus on the family backgrounds, secret techniques passed down through generations, or the cultural aspects that have been inherited in the Naruto world.