In a fanfiction, Naruto could inherit some of the combined traits of Hashirama and Madara. For example, he might have Hashirama's ability to connect with nature on an even deeper level, while also having Madara's strategic mind. This would make him an even more formidable ninja. He could use these newfound abilities to face new and stronger enemies, like an ancient evil that once threatened Hashirama and Madara.
I think it has the potential to be popular. In fanfiction, unique family relations like Naruto being the grandson of Madara and Hashirama can open up a plethora of new plotlines. For example, it could change Naruto's relationship with Sasuke, as their clans' history would be even more intertwined. Also, Naruto might inherit some special abilities from his supposed grandfathers, which is always exciting for fans to explore.
Well, a plot could develop where Naruto is trained in secret by an old ally of Madara and Hashirama who knows about his heritage. This training could involve unlocking ancient jutsu that were lost over time. Also, his relationships with other characters like Sakura and Kakashi would change as they try to come to terms with his new - found family background. And there could be a conflict with the Akatsuki, who might see Naruto as an even greater threat or a valuable asset because of his relation to Madara and Hashirama.
In a fanfiction where Naruto is Madara's great - grandson, it would be fascinating to explore how his character develops. He might struggle with the darker side of his heritage, considering Madara's actions. However, he could also use his Uzumaki spirit to bring a new perspective to the Uchiha legacy. His relationships with Sasuke would be especially complex, as they would be related in a much more direct way than in the original story. Naruto could also potentially unlock new forms or powers related to his Uchiha bloodline, which would add a whole new layer to his battles and adventures.
If Naruto was their grandson in fanfiction, his power level would likely skyrocket. He could gain access to the Wood Style more easily, like Hashirama. And he might have a natural understanding of the Sharingan and its powers from Madara. This would change the way he approaches battles and how others view him.
If Naruto were Madara's great - grandson in fanfiction, it would have a huge impact on the story. Naruto's place in the shinobi world would be redefined. His understanding of the ninja way would be influenced by both Uzumaki and Uchiha values. His interactions with the Hidden Leaf Village would be more complex. He could face discrimination from some who fear the power of the Uchiha, but also gain allies who see his potential. His relationship with Hinata could also be affected, as her family might view his new heritage in different ways. Moreover, Naruto's role in the overarching conflict between the villages and the forces of evil would be different, as he now has a different lineage to draw strength from.
Yes, there might be such a fanfiction out there. The Naruto fandom is quite large and diverse, with fans creating all sorts of unique and imaginative stories. Some fans like to explore alternative family relations for the characters, and the idea of Naruto being related to demons in some way could be an interesting concept for a fan - created story.
In some fanfictions, Naruto can be depicted as Hashirama's descendant. Fanfiction allows for creative interpretations, so authors might create a backstory where there is a family connection between them. However, in the original Naruto series, there is no such indication.
Fanfiction.net is also a good place to search. There are many Naruto fanfictions there. However, the search functionality might not be as refined as AO3. You may need to dig a bit deeper. Browse through the Naruto category and look for tags related to gay relationships between Naruto and Hashirama or just skim through the stories to find what you're looking for.