Well, it depends on what you consider 'good'. There are definitely fanfictions with this concept. I've seen ones where the reincarnation aspect leads to some really interesting power struggles in the Naruto universe. For example, Gilgamesh's pride and arrogance clash with the shinobi values. It makes for some intense character interactions. You should search for tags related to 'Naruto', 'Gilgamesh', and'reincarnation' on the fanfiction platforms to find them.
One main theme is often power. Gilgamesh is a very powerful character, and seeing how his power manifests in the Naruto world is a big part of it. Another could be identity, as the reincarnation has to deal with being both Gilgamesh and a part of the Naruto universe.
Yes, there are likely fanfictions exploring such a concept. Fanfiction writers often come up with unique and wild ideas like this. They might combine the Naruto universe with elements from the Gilgamesh story to create an interesting narrative where Naruto has some connection to Gilgamesh through reincarnation. This could involve Naruto having some of Gilgamesh's powers or personality traits in the fan - created story.
The clash of cultures would be interesting. Naruto's world of ninjas and Gilgamesh's more ancient, mythological world. Naruto might have an air of royalty and arrogance that he didn't have before. His fighting style could change, incorporating Gilgamesh's powerful weapon - summoning abilities. Also, his view on power and leadership might shift, creating new conflicts and relationships within the Naruto universe.
In a 'Harry Potter reincarnation of Gilgamesh' fanfiction, the story could begin with Gilgamesh's reincarnation being born into a wizarding family. He quickly shows extraordinary magical abilities that are not typical of a normal wizard. As he grows up, he becomes aware of his past identity. He might be drawn to the Forbidden Forest, believing it to hold secrets related to his past. He could encounter magical creatures there that recognize his ancient soul. His presence in the wizarding world could disrupt the balance between good and evil as dark forces become interested in his power, while the good side tries to convince him to use his power for the right reasons.
Yes, there are likely some fanfictions out there with this concept. Fanfiction writers often come up with unique crossovers, and the idea of Naruto being related to King Gilgamesh in a fan - created story is not unheard of. You can try searching on popular fanfiction websites like Archive of Our Own or FanFiction.net.
Another possibility is a new character, perhaps an ancient evil that was somehow connected to Gilgamesh in his past life. This entity could have been trapped or dormant for centuries, and the presence of Gilgamesh's reincarnation awakens it. It then sets out to destroy Gilgamesh and the wizarding world as we know it.
He might become more confident, bordering on over - confident like Gilgamesh. Naruto is already confident, but with Gilgamesh as his father, he could have an even greater sense of self - importance.
First, do your research on each of the source materials. Know the power levels, the personalities of the characters in Naruto, Gilgamesh's lore, and the world - building of DxD. Then, come up with a unique concept that can blend these three elements together. For example, you could have a crossover where a Naruto character is transported to the DxD world and meets Gilgamesh there.
It could be Naruto himself. Imagine Naruto with the added powers and characteristics of Gilgamesh. He would be even more of a force to be reckoned with, using his Uzumaki tenacity along with Gilgamesh's haughty confidence and powerful abilities.