One great fanfiction in this category could be 'The Convergence of Universes'. It explores how MCU characters interact with Earth - 616 Peter Parker in a really exciting way. The story has some great action scenes where Peter shows off his skills from Earth - 616 while also learning from the MCU counterparts.
Peter Parker's MCU origin story begins with him as a high - school student in Queens, New York. He was orphaned and raised by his Aunt May and Uncle Ben. Peter was a brilliant but nerdy kid. One day, he gets bitten by a genetically - altered spider at a science exhibition. This bite gives him superhuman abilities like enhanced strength, speed, and the ability to cling to walls. He then starts using his powers to fight small - time crime in his neighborhood, all while trying to balance his normal life with his new - found responsibilities as a superhero.
MJ is an obvious choice. She has a connection with Peter in the MCU already. Then there could be Gwen Stacy, who is a classic love interest in the Spider - Man lore. Another potential character could be Black Cat. Her flirtatious nature would add an interesting dynamic to the harem.
Peter Parker's reaction was one of determination. He was motivated to do more to prevent such tragedies in the future and was driven to be a stronger hero. His emotions were a mix of grief and a resolve to make a difference.
One interesting storyline could be Peter Parker trying to balance his superhero duties with his relationships in the harem. For example, he has to keep his identity a secret from some of the girls while still being there for them. Another could be the different dynamics between the characters in the harem, like a love - hate relationship with one of them.
The different power - sets and how they interact. Earth - 616 Peter might have different abilities or a different way of using his powers compared to the MCU version. For example, his web - shooters might work differently or he could have some additional powers that the MCU Peter doesn't. This can create cool fight scenes and problem - solving situations in the fanfiction.
Peter will probably be very confused at first. He's used to being part of the team, and suddenly being hunted by them is a huge shock. He might try to talk to them to clear up any misunderstandings.
Peter would likely be defiant. He has a strong moral compass and wouldn't easily give in to Osborn's demands. He'd probably try to find a way to escape right away, using his spider - abilities like climbing walls and his super strength to break free from any restraints.
Peter would probably be scared at first. He's just a kid, after all, and being kidnapped by a powerful being like Thanos is terrifying. But he would also be defiant. He has a strong sense of responsibility, so he might try to find a way to escape on his own.
First, if the fanfiction is really good, you can recommend it to your friends who are also fans of Peter Parker. You can react by being critical too. If there are plot holes or if the character of Peter seems out of place, you can write a constructive review. Another way to react is by creating fanart inspired by the fanfiction. This shows your appreciation for the story in a creative way.