Some fanfictions give Spider - Man the power to heal himself much faster. This means that even after a really tough fight, he can get back on his feet in no time. In addition, he might have the power to fly using his webs in a more efficient way, like creating a sort of web - glider that can carry him long distances. There could also be a power where he can project his thoughts into the minds of others, which would be useful for both communication and misdirection.
In some fanfictions, Spider - Man has the power to control his webbing in more complex ways. For example, he can make it into different shapes like shields or nets on a much larger scale. This gives him more defensive capabilities during battles.
One idea could be exploring a new villain that is created from a scientific experiment gone wrong in Oscorp. This villain could have powers related to electricity and pose a new threat to Spider - Man.
One popular plotline is the exploration of Peter Parker's relationship with his friends in a more in - depth way. For example, his friendship with Harry Osborn might take different turns, like Harry finding out about Peter's secret identity earlier and having a more complex reaction. Another plotline could be Peter facing new and unique villains that are not in the original movies or comics. These villains could have special powers or motives that test Spider - Man in new ways.
Another plot could be that Spider - Man unmasks himself voluntarily to gain the trust of the public. He realizes that the city is losing faith in him due to all the destruction that often occurs during his battles. By unmasking, he shows that he is just an ordinary person trying to do good, and this could lead to a more united front between him and the people of New York against the super - villains.
A crossover with the Avengers is also great. Picture Spider - Man having to prove himself to the more established heroes like Iron Man and Captain America. He could bring his unique street - level hero skills to a big - scale Avengers mission.
One interesting crossover could be Spider - Man using his agility and web - slinging skills to help the Avengers in a city - based battle. His ability to move quickly through the skyscrapers can give the Avengers an edge in a fight against villains who are causing chaos in a metropolis.
A plot could be that a powerful jutsu in the Naruto universe accidentally creates a portal that links it to the Spider - Man universe. Naruto and his friends enter the new world and team up with Spider - Man to stop a group of villains who are trying to use the portal for their own evil plans.
Archive of Our Own (AO3) is a great place. It has a large collection of fanfictions about The Amazing Spider - Man. There are various genres and styles to choose from.
A great plot for Amazing Spider - Man fanfiction could be a time - travel story. Spider - Man could be sent back in time to the era when his powers first emerged. He could then use his knowledge of the future to prevent some of the tragedies that occurred in his past, like the death of Uncle Ben. Or, he could be sent to a future where New York has become a dystopia, and he has to find a way to fix it and return to his own time.
It expands the universe by introducing new characters. Fanfiction writers can create their own original characters that interact with Spider - Man. These characters could be other superheroes, villains, or just normal people who get caught up in Spider - Man's world. For example, a new hero who teams up with Spider - Man to fight a common enemy.