Doctor Octopus is another great option. His mechanical tentacles and his high - level intellect pose a significant threat. You could write a story where he creates a new, more powerful set of tentacles that Spider - Man has to figure out how to defeat.
One great fanfiction idea could be that Gwen discovers Peter's secret identity in a really unexpected way. Maybe she stumbles upon his Spider - Man suit while looking for something in his room. This would create a lot of drama and tension between them as she has to decide what to do with this knowledge.
One idea could be exploring a different origin story for Spider - Man in the fanfiction. Maybe he gets his powers from a scientific experiment gone wrong in a completely new way. For example, instead of being bitten by a radioactive spider, he could be exposed to a mutagenic serum that gives him spider - like abilities along with some unique side - effects that he has to deal with.
The Vulture could be a likely villain. He might see kidnapping a Spider - Man fan as a way to draw Spider - Man out into the open and then attack him when he's vulnerable trying to rescue the fan. The Vulture could be after some valuable tech that he believes Spider - Man has hidden and thinks the fan might know its location.
There are many great fanfictions out there. One I really liked was where Gwen and Peter went on a road trip together. During the trip, they encountered some small - time villains and had to use their combined wits to stop them without revealing Peter's identity. It was a really fun and light - hearted story.
One possible fanfiction could be about the Sinister Six's origin. Maybe they all meet in a secret lair, each with their own motives for joining forces against Spider - Man. They could be brought together by a common enemy of Spider - Man who offers them great rewards.
In Spectacular Spider - Man fanfiction, the identity crisis can be a really interesting concept. Peter Parker has to constantly balance his normal life and his superhero identity. In some fanfictions, this is taken to new extremes. Maybe he's faced with a situation where his identity is exposed to more people than just the bad guys, like his friends or family. This can lead to a whole new set of problems and challenges for him to overcome.
A really interesting fanfiction might explore what would happen if Gwen found out about Peter's identity earlier in their relationship. It could delve into how their dynamic would change, and how they would handle the added danger that comes with knowing Spider - Man's true self.
It adds to the fandom by allowing fans to express their emotions. They can share their love, excitement, or even disappointment about the show. This helps create a community where others can relate.
The Shriek can be really interesting in fanfiction. Her sonic powers can be explored in unique ways, like how she uses them not just for destruction but also to manipulate situations or people around Spider - Man.