A possible plot could be that Thea Queen, being from her own universe, somehow gets transported to Peter Parker's world. She then teams up with him to fight a common enemy that is causing chaos in both their worlds.
Perhaps Peter Parker is on a scientific mission and accidentally discovers a portal that leads to Thea Queen's realm. There, he has to adapt to the new environment while Thea helps him understand the politics and power dynamics. Meanwhile, they start to develop a friendship that might turn into something more.
Another plot could involve Naruto visiting Thea Queen's world. He might be confused by the advanced technology at first but quickly adapts. Naruto could use his shadow clone jutsu to help Thea Queen in a fight against her enemies in Star City. They could also learn from each other's sense of justice and determination.
You can try fanfiction websites like Archive of Our Own (AO3). It has a large collection of fanfictions on various topics, including those about Thea Queen and Peter Parker. Just search for the relevant tags and you'll be presented with a list of stories.
A really interesting plot could be that Gormora and Peter Parker accidentally swap powers. Peter has to figure out how to control Gormora's powers while she tries to adapt to his spider - abilities. It would be a fun exploration of how they both view and use each other's powers. Also, a plot where Gormora's past enemies from her own world come to Earth, and Peter has to help her defend it, while also dealing with his own superhero duties in New York. This could create some great action - packed and emotional scenes as they bond over protecting the planet.
Maybe it could be about Peter Parker experiencing five different alternate universes where he has different relationships with his friends and family. In one universe, he might be closer to Ned, in another he could have a different dynamic with MJ. Each time he jumps to a new universe, he has to adapt and face new challenges.
One idea could be that Peter tries to find a way to coexist with Venom without losing his own mind. He could use Venom's powers for good in a new and unique way, like being able to heal people with Venom's symbiotic abilities. Another plot could be Venom getting separated into multiple parts and Peter has to track them all down before they cause chaos. Maybe one part of Venom attaches to a villain and gives them enhanced powers that Peter has to face.
Some fanfictions might explore the idea of Peter Parker as an intern getting a mentor who is not from the usual Spider - Man lore. For example, an alien scientist who has a completely different view on ethics and science. This could cause Peter to question his own beliefs and values. Or perhaps Peter's intern work leads him to create a new piece of technology that has unintended consequences, like accidentally creating a new super - villain or a power - enhancing device that falls into the wrong hands. This would set off a chain of events that Peter has to deal with, all while trying to balance his intern duties and his life as Spider - Man.
Perhaps the stalker is a new character who has a misguided admiration for Spider - Man. They think that by stalking Peter, they can get closer to the superhero lifestyle. They might leave little gifts or notes for Peter, which at first seem harmless but gradually become more and more intrusive, making Peter feel very uncomfortable and on edge.
Well, for a Peter Parker hibernation fanfiction, perhaps he hibernates because he's exposed to a rare chemical. During his hibernation, his Spider - Sense evolves in some way. When he wakes up, he finds that his enemies have become more powerful. He might also hibernate as a way to avoid a dangerous prophecy. While in hibernation, he communicates with the spirit of Uncle Ben in his dreams, getting some much - needed advice. Another possibility is that he goes into hibernation after overusing his powers, and when he wakes, he has to learn how to control them all over again from scratch.
One idea could be that Peter Parker has to team up with the Defenders to stop a new super - villain who has the ability to control technology. This villain is causing chaos in New York by hacking into all the city's systems. Another plot could involve Peter's identity being at risk during a joint mission with the Defenders, and they have to protect his secret while also fighting off a group of powerful enemies. Maybe there's a magical threat that the Defenders are not used to dealing with, and Peter's scientific knowledge combined with his spider - powers helps them find a solution.
One idea could be that during his internship, Peter discovers a new type of tech that has the potential to revolutionize Spider - Man's suit. For example, he might find a way to make the suit completely energy - efficient, allowing him to stay out longer on patrols.