One interesting story could be about Spider - Man teaming up with a new, unexpected ally. Maybe a villain who has a change of heart and decides to help him fight a greater evil in the fanfiction world. This would add a new dynamic to the usual Spider - Man battles.
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.
One interesting storyline could be about how Spider - Man manages his relationships with different characters in the harem while still fighting crime. Maybe he has to balance his time between going on dates with his love interests and saving the city from villains.
One idea could be exploring the relationship between Spider - Man 2099 and other superheroes in the future. Maybe he teams up with a new group of heroes to fight a powerful villain who threatens the entire city.
In a more complex plot, a mysterious new villain with mind - control abilities kidnaps a fan who has a special connection to Spider - Man, like they were at the scene of one of his early battles and their story inspired Spider - Man. The villain wants to use the fan's memories and emotions to create a weapon against Spider - Man. Spider - Man has to figure out the villain's plan and save the fan before it's too late.
A plotline could be Gwen and Peter's time - traveling adventure. They might end up in different eras of the Spider - Man universe and have to find a way back while also facing the challenges of those times. For example, they could end up in the era of the original Spider - Man comics and interact with the characters from that time.
One interesting aspect is seeing different perspectives on the show. Fans might react to the character development of Spider - Man, like how he grows from a shy teen to a confident hero. It could also focus on the relationships, such as his friendship with Gwen Stacy or his mentorship under Curt Connors.
One idea could be Carnage taking over a major corporation in the Spectacular Spider - Man universe. Spider - Man then has to figure out how to stop Carnage without causing too much destruction to the company and its employees. Another plot could involve Carnage teaming up with a lesser villain to create chaos, and Spider - Man has to face two foes at once.
A great idea for a Spectacular Spider - Man fanfic is to introduce a new villain. This villain could be someone with a personal vendetta against Peter Parker, not just Spider - Man. It could be a former classmate who blames Peter for something that happened in the past. You could also write a fanfic about Spider - Man teaming up with other superheroes from the Marvel universe. He could join forces with Daredevil to take on a common enemy in New York. Or perhaps a story where Spider - Man has to deal with the consequences of his actions in a more emotional way, like when he fails to save someone and has to come to terms with that failure.
The 'Civil War' story arc involving Spider - Man is also great. It explored his moral dilemma of choosing sides between Iron Man and Captain America. Spider - Man's decision - making process and how it affected his relationships made for a very engaging story.
A very emotional fanfiction could be about Gwen's death from Peter's perspective. It would explore his grief, guilt (if he blames himself), and how he copes with losing the love of his life. This type of story could also show his journey to find a new purpose in life after such a great loss.