One possible plotline could be Peter using the arc reactor to enhance his existing abilities. For example, if he has spider - powers, the arc reactor could make them stronger. Another could be Peter having to protect the arc reactor from villains who want to steal it for their own evil purposes.
Well, in some fanfictions, the arc reactor could be a link to an alternate dimension or power source. Peter then has to deal with the consequences of this discovery. It could also be that the arc reactor is part of an experiment gone wrong, and Peter has to fix things while also dealing with the power it gives him. Or perhaps the arc reactor was created by an unknown entity, and Peter has to find out who and why, all while using its power to fight crime.
Maybe he found it in an abandoned Stark Industries facility. It could have been left behind during some chaos and Peter, being the curious and resourceful guy he is, discovered it and decided to study it.
Maybe Peter discovers an old, broken Arc Reactor and decides to fix it up. He could use his scientific knowledge to tinker with it and eventually get it working, which then gives him some new powers or abilities.
Some Tumblr blogs that focus on Marvel fan works could also be a good source. There are bloggers who are really into collecting and sharing fanfictions. You might need to use the Tumblr search function and look for tags related to Peter and the Arc Reactor to see if you can find the fanfiction you're looking for.
One possible plotline could be Peter struggling to communicate his superhero identity and his daily life challenges to his friends and family without using his voice. Maybe he has to develop a unique sign language or other non - verbal communication methods.
Sure. One great Peter has a arc reactor fanfiction is 'The Arc Within'. It delves deep into how Peter's life changes with the arc reactor, exploring his newfound powers and the challenges he faces. Another is 'Arc Reactor Adventures' which focuses on the technical aspects of the arc reactor and how Peter uses it in creative ways.
In this fanfiction, perhaps there's a big misunderstanding. Bucky has been led to believe that the arc reactor is some sort of key to a greater evil. So, without fully understanding its importance to Tony, he rips it out. This could then lead to a chain of events where Bucky has to face the consequences and try to make amends while Tony is fighting for his life.
In this fanfiction, perhaps Peter Parker is a huge dragon fan from a young age. One day, he somehow gets transported to a world full of dragons. There, he uses his intelligence and Spider - Man - like skills to survive. He might learn how to communicate with the dragons and ends up befriending one. This dragon could then help him get back to his own world, but not before he has to face some challenges in the dragon world, like saving the dragon eggs from poachers.
Perhaps Peter returns to Narnia and finds that time has passed differently there. His old friends have aged much more than he expected, and there are new political tensions in the land. He then has to use his leadership skills from his previous time in Narnia to help resolve these issues and bring peace back to the kingdom.
Maybe Peter discovers a new and powerful criminal organization that has infiltrated the city at a very deep level. He realizes that if he involves others, it could put their lives in danger, so he decides to take on this threat alone. This could lead to a series of dangerous encounters where he has to use all his wits and powers.
Well, in some 'peter is pepper's son fanfiction', there could be a plotline where Pepper tries to protect Peter from the dangerous superhero world that she has witnessed through her association with Tony. But Peter, being the hero - at - heart person he is, rebels against this over - protection. This could lead to conflicts between them. Another possible plot is that Peter uses Pepper's resources and connections to further his own superhero career in a more organized and efficient way. And perhaps there could be a story where Peter's scientific mind combines with Pepper's business acumen to create something new and amazing for the world.