One example could be a fanfiction where Hinata gets jealous whenever Naruto talks to other female characters. She might subtly try to keep Naruto's attention on her by always being by his side and giving disapproving looks when others approach him.
One example could be that Fe doesn't allow others to rewrite or modify the Naruto fanfiction they have created. They might be very strict about copyright and ownership, and get angry if someone tries to take credit for their work.
In a certain fanfiction, there was a village-wide competition. During one of the events, another competitor was being too rough with Hinata. Naruto stepped in, warning the competitor to be more careful around Hinata. He then stayed close to Hinata for the rest of the event to make sure she was okay.
There's a fanfic called 'Naruto and Hinata: Possessive Devotion'. It shows how Hinata's possessiveness kicks in when other girls show interest in Naruto. She becomes more assertive in their relationship, which is a really interesting take on her character. The story also has some great action scenes and emotional moments between the two.
One example could be in a fanfic where Draco constantly tries to keep Ginny away from other male characters at Hogwarts. He might glare at anyone who gets too close to her during Quidditch matches or in the hallways.
One example could be a fanfiction where Naruto gets jealous when other guys even look at Hinata. He might always want to be by her side at social events and be overly protective when they're out on missions together.
One example could be a fanfiction where Naruto discovers a talking stuffed fox. This stuffed fox might have some hidden powers or knowledge related to the ninja world. It could start guiding Naruto in his training or even give him insights into his family's past.
I'm not sure of specific fanfictions where Hermione is depicted as a thief off the top of my head. But in some fanfiction, this might be part of a plot where she steals a powerful magical artifact to keep it out of the wrong hands, perhaps believing the Ministry or some dark forces are misusing or will misuse it.
In some fanfictions, Loki's possessiveness of Peter can be seen in the way he protects him. He'll go to great lengths to keep Peter out of harm's way, but not just because it's the right thing to do. It's also because he sees Peter as his own. He might be overbearing at times, not allowing Peter to take risks on his own, which shows his possessive nature.
I'm sorry, I'm not aware of specific 'acnologia is naruto fanfiction' examples off - hand. You could try searching on fanfiction websites like FanFiction.net or Archive of Our Own using relevant keywords to find such stories.
Some examples could be stories that focus on Naruto having a different jutsu system based on the prototype. For instance, if in the prototype he had a more nature - based jutsu instead of the shadow clone jutsu. Another example might be fanfictions that explore the relationships between characters like Sasuke and Naruto in a way that was different in the prototype, maybe they were friends from the start in the prototype and the fanfiction elaborates on that concept.