One popular trope is the 'Civilian Identity Reveal'. It's always exciting to see how other characters react when they find out Peter is Spider - Man. Another is the 'Peter Gets a Mentor' trope, which could be someone like Tony Stark or an original character. And of course, the 'Peter Saves the Day Against All Odds' is a classic.
Another trope is 'Mutual Discovery'. In these stories, Peter and Lorna discover new things about their powers or their pasts while interacting with each other. This trope helps to build a deeper connection between them as they share these revelations and grow together as characters.
One common trope is the 'fish - out - of - water' situation. When Peter is deaged, he's in a body that doesn't match his mind. So he has to navigate the world in a new way, like trying to go to school as a child again when he has the knowledge of an older person. Another trope is the 'protective Avengers'. They see this deaged Peter and immediately feel the need to protect him, which leads to some really sweet moments.
The 'fish out of water' trope is quite popular. For example, Peter Parker visiting Star City and being amazed by how Oliver Queen operates as the Green Arrow in a different environment compared to his New York. It creates a lot of humorous and interesting situations.
One popular trope is the 'Secret Identity' angle. Writers often play with the idea of Peter Parker trying to keep his identity as Spider - Man a secret while also dealing with his relationships, which adds a lot of drama and tension. And of course, his handsomeness can be a factor in attracting love interests or causing jealousy among characters.
One popular trope is the 'Redemption Arc' for Mysterio. In many fanfictions, he is given a chance to redeem himself in Peter's eyes. Another is the 'Mentor - Apprentice' relationship, where Mysterio teaches Peter some new skills or ways of thinking. 'The Enemy - Turned - Ally' trope is also common. They start as foes but circumstances force them to work together.
The 'hurt/comfort' trope is also quite common. Wade might get into some dangerous situations, and Peter uses his powers to save him or vice versa, which then leads to a deeper emotional connection. There are also fics that play with the 'fish out of water' trope, especially if Wade is introduced into Peter's more normal life in Queens, and his chaotic nature disrupts Peter's routine in an interesting way.
Time - travel and alternate universe tropes are quite popular too. Writers might send Peter Parker or Pietro Maximoff to different timelines or universes, which can lead to all sorts of interesting scenarios. It could be a chance for them to meet different versions of themselves or other Avengers, and these stories often involve a lot of action, adventure, and self - discovery.
The 'Forbidden Love' trope is also common. Kai might fall in love with a character he shouldn't, like a vampire hunter or a witch from an opposing coven. It creates a lot of drama and tension in the story. For instance, in some fanfictions, Kai's love interest is from a family that has been sworn enemies of his for generations, and they have to fight against all odds to be together.
One popular theme is loss. Peter could be mourning the death of someone close to him, like Aunt May or a fellow superhero. This makes him break down and cry as he tries to cope with the emptiness. Another theme is self - doubt. He might question his abilities as Spider - Man, which leads to him crying in despair. For example, if he fails to save a civilian, he starts to think he's not worthy of the mantle. Also, unrequited love is a common theme. Peter might have feelings for someone who doesn't feel the same way, and this causes him to cry in private.
One popular theme is the power - sharing or power - combination theme. Writers like to explore how Peter's physical powers and Raven's psychic powers could work together in different situations, like in a battle against a powerful villain. Another theme is the culture - clash theme, as they come from different fictional backgrounds.