One possible plot could be that Naruto discovers he has some hidden Otsutsuki bloodline. This leads to him being ostracized by some in the village who fear his new - found power. He then has to go on a journey to learn about his Otsutsuki heritage, facing challenges along the way and also having to prove that he's still the same Naruto at heart.
One great 'Naruto Kaguya Otsutsuki Fanfic' is 'The Legacy of Kaguya'. It explores her backstory in a very detailed way. It shows how she came to be the powerful being she was in the Naruto series. The author does a great job of creating new scenarios that fit well with the existing Naruto lore.
Yes, it could be. The Otsutsuki clan has a significant presence in the Naruto series. Their unique powers and mysterious origin make them quite interesting. A fanfic exploring Naruto's relation to them in a new way might attract fans who are eager to see different interpretations of the story and characters.
Momoshiki Otsutsuki is also quite popular. His powerful abilities and his role as a major antagonist in the Boruto series give a lot of material for fanfic writers. They can expand on his backstory, or create alternate scenarios where he has different interactions with the main characters.
One interesting concept could be exploring the unique powers of the Otsutsuki clan in more depth. For example, how their different doujutsu abilities interact with the existing ninja world. Another could be delving into the backstories of Otsutsuki characters that were not fully explored in the original Naruto series.
One popular 'Naruto Otsutsuki DxD Fanfic' is 'Naruto: Shinobi of the Underworld'. It combines the elements of the Naruto universe with the unique aspects of High School DxD in an interesting way. The story often has Naruto facing new challenges and using his shinobi skills in a different, more supernatural setting.
Some characters might be in awe of him. For example, his friends like Sakura and Kakashi could see him in a new light. They might be more cautious around him at first, not fully understanding the implications of his new bloodline. His enemies, on the other hand, would likely be more fearful or more determined to defeat him. The Hidden Leaf Village might also have a different attitude towards him. They could be both proud that one of their own has such a powerful bloodline, but also worried about the potential danger it could bring.
Well, his pure Otsutsuki blood might enhance his physical strength. For example, he could have greater stamina and be more resilient in battles. His dojutsu abilities could also be amplified. Maybe he can use the Sharingan or Byakugan in a more powerful way than normal. He might also have a natural affinity for Otsutsuki - related jutsu, like those involving space - time manipulation.
The combination of two very different universes. Naruto's ninja world with its jutsus and shinobi culture, and DxD's world of devils, angels and supernatural beings. It creates a whole new set of possibilities for stories.
A unique plot makes a 'Naruto Kaguya Otsutsuki Fanfic' stand out. For example, if it gives a new perspective on Kaguya's motives. Maybe she had reasons for her actions that were not fully explored in the original series.