In this fanfic, Spider - Man is the central figure. But we can't forget about his friends like Ned Leeds. Ned could play an important role in helping Spider - Man understand and control his new Captain Universe powers. Also, villains such as Green Goblin or Doctor Octopus could be main characters in a sense. They would be the antagonists to Spider - Man's new, more powerful self, constantly trying to thwart his plans and bring him down.
Obviously, Spider - Man is one of the main characters. He's the one who gets the Captain Universe powers. And Mary Jane Watson might also be a main character as she's an important part of Spider - Man's life. Another could be J. Jonah Jameson, who always has an interesting take on Spider - Man's activities, especially when he becomes this more powerful version.
Perhaps when they combine, Spider - Man gets the ability to fly due to Captain Universe's power. He could also have a sort of cosmic - awareness, being able to sense threats from across the universe. This would make him an even more formidable hero, able to protect not just his city but also have a role in the greater cosmic balance.
One interesting aspect could be the unique powers Spider - Man gains as Captain Universe. It makes for really cool action scenes. For example, his strength and agility could be enhanced to an even greater degree than his normal powers. Another aspect is how his character might change in the fanfic. Maybe he becomes more self - assured or takes on more global - scale threats.
Maybe in the fanfic, Captain Universe's power has a mind of its own and it tries to take over Spider - Man. Spider - Man then has to fight against this internal struggle as well as external threats. This could lead to some really intense character - development moments.
Some fanfictions focus on the origin of Captain Universe Spider - Man. They might explore how Peter Parker gets chosen to be the host of the Captain Universe power. It could be a story full of mystery and unexpected events, like a hidden prophecy or a special connection between Peter and the cosmic forces that leads to him obtaining these powers.
One idea for a Captain Marvel and Spider - Man fanfic could be that they team up to fight a common enemy from another dimension. Maybe a powerful alien force is trying to invade Earth, and their combined powers are needed to stop it. Captain Marvel with her energy - based powers and flight, and Spider - Man with his agility and web - slinging skills would make an awesome duo.
You can try websites like Archive of Our Own (AO3). It has a large collection of fanfictions from various fandoms, including many about Captain Universe Spider - Man. Just use the search function and type in relevant keywords.
The symbiote - Venom often has interesting interpretations in alternate universe fanfiction. In some universes, it could be a heroic entity instead of a villain, bonding with Spider - Man in a different way. Otto Octavius, or Doctor Octopus, also gets a lot of attention. In some alternate stories, he might be redeemed and become an ally of Spider - Man, or his origin could be completely different, like being a scientist from a parallel dimension.
There are many fanfics that focus on Miles and Peni in the Spider - Man world. Some might explore their friendship, like how they team up to face a new villain in their neighborhood. They could use their unique spider - powers in combination to defeat the bad guy.
Well, obviously Spider Man is one of the main characters. He is the well - known superhero with his amazing spider - like abilities.
Obviously, Spider - Man himself is a main character. He's the one who wears the spider armor. There might also be his usual supporting characters like Mary Jane or Aunt May, who could have different reactions to the new armor.