Spiderman's opponents included:
- Dr. Octopus
- Green Devil
- Fantastic Four
- panther
- Iron Man
- Thor
- Thanos
- black Widow
- The Hulk (comics)
- Spider-Man himself and various other villains.
It could be his mentor. In the fanfic, the mentor might think that Spider Man is becoming too powerful and is a threat to the balance of power. So, he could betray Spider Man by leaking his secret identity or setting him up to be captured by the authorities.
Venom is quite popular in Spider - Man fanfiction. His complex relationship with Spider - Man can be explored in many ways. He can be a villain, an anti - hero, or even an ally in some really creative fanfictions. Another popular one is Gwen Stacy. Fans love to write about her and Peter's relationship, especially in alternate timelines.
Obviously, Spider - Man himself is a main character. He's the one who wears the spider armor. There might also be his usual supporting characters like Mary Jane or Aunt May, who could have different reactions to the new armor.
The main characters include Miles Morales, who is a key figure as he discovers his powers and tries to fit into the world of Spider - Men. Peter B. Parker, an older and more jaded version of Spider - Man, is also important. Gwen Stacy, as Spider - Woman from another universe, is among the main characters too. Their interactions and different personalities drive the story forward.
Iron Man is also often paired with Spider Man. Given their connection in the official Marvel universe, in fanfiction, they can have all kinds of adventures together. It could be Iron Man mentoring Spider Man, or them working together to solve a global crisis that requires both their technological and super - powered skills.
Iron Man is a great character to pair with Spider - Man. Tony Stark can act as a mentor to Peter Parker, providing him with new and advanced tech for his suit. They also have a fun dynamic, with Stark's sarcasm and Spider - Man's youthful exuberance.