One interesting storyline could be Spider - Man having to use his unique abilities to solve a mystery within the Avengers' headquarters. His agility and spider - sense might lead him to discover a hidden threat that the other Avengers overlooked.
One interesting storyline could be Spider - Man teaming up with the Avengers to fight a new super - villain that's a combination of different powers they've faced before. For example, a villain with the strength of the Hulk and the mind - control abilities of Loki.
Another storyline might involve Spider - Man bringing in his street - level knowledge to the Avengers. Since he deals with small - time criminals in New York on a daily basis, he could help the Avengers understand the ground - level threats that they sometimes overlook. This could lead to a mission where they have to stop a group of villains who are using the city's infrastructure in a devious plot.
One interesting storyline could be about Spider Man facing a new villain that was created specifically for the fanfiction. This villain might have powers that directly oppose Spider Man's, like the ability to nullify his spider - sense.
Another could be a story where Iron Man mentors Spider - Man in the world of high - tech gadgetry. Spider - Man might be having trouble with his web - shooters, and Iron Man helps him upgrade them to be more efficient and versatile. This could also lead to some humorous moments as Spider - Man tries to adapt to the new tech.
In some fanfictions, Tobey Maguire's Spider - Man has to face off against a common enemy with the Avengers but has a different approach to taking them down. This can lead to some tense moments within the team as they try to figure out the best way to combine their powers. There are also storylines where he discovers new powers or abilities while working with the Avengers. Maybe the technology or the magic within the Avengers' world unlocks something in him that he didn't know was there. And sometimes, there are stories about his secret identity being at risk while being part of the Avengers and how he has to deal with that.
One great storyline could be Spider - Man trying to prove himself to the Avengers during the Age of Ultron chaos. He might start off as an underestimated newcomer but then show his true worth by using his unique abilities like his spider - sense to detect Ultron's minions before the others. Another could be a story where Spider - Man has to rescue a captured Avenger from Ultron, using his agility and web - slinging skills to outwit Ultron's defenses.
Perhaps a storyline where they get transported to an alternate dimension and have to find their way back home while also dealing with the differences in that world. In this dimension, the rules of physics or the power dynamics might be different, which creates new challenges for them. They might have to rely on each other more than ever and in the process, their relationship deepens.
In some fanfictions, the spiderling could be from a future timeline and comes back to the present to help Spider - Man. This could involve him warning Spider - Man about a great danger that's coming and they have to work together to prevent it. Or perhaps Spider - Boy has a unique power that Spider - Man doesn't, like the ability to communicate with spiders on a deeper level. Their story could revolve around how they combine their powers to defeat a new breed of villains that are immune to Spider - Man's usual attacks. And there could also be a story where all three, spiderling, Spider - Boy, and Spider - Man, are brought together by a mysterious force and have to figure out why and what their combined purpose is.
One interesting storyline could be Silk and Spider - Man teaming up to take on a new super - villain that has the power to manipulate time. They have to figure out how to work together while also dealing with their own personal issues. For example, Silk might be struggling with her newfound powers and how they affect her relationships outside of being a hero, and Spider - Man could be dealing with the pressure of being a public figure.
In some fanfiction, there might be a love story between Spider - Man and Dazzler. They could meet during a city - wide crisis and gradually fall in love as they fight side by side. Their different powers and backgrounds would make for an interesting relationship dynamic.