Adrian Toomes is a significant antagonist. He's a brilliant inventor who turns to crime to get what he wants. His Vulture suit gives him enhanced abilities and makes him a threat to the heroes.
Another theme could be secrecy and identity. Peter has to keep his identity as Spider - Man a secret, and Toomes also has his own secrets. Fanfictions might play with how they deal with each other's secrets and how it affects their relationship. For example, there could be a plot where they gradually discover each other's true selves and how that changes their bond.
Fanfiction.net could also be a place to look. However, the tagging system might not be as precise as AO3. But still, it has a vast amount of fanfiction, so it's worth a try. Just search for the specific pairing, and you may come across some interesting stories.
Captain Marvel is Carol Danvers. She gained her powers through an interaction with alien technology and has become a powerful hero in the Marvel universe.
Morbius is a Marvel Comics character. He's a tragic figure, driven by his scientific ambitions and then burdened with vampiric powers. His storylines usually explore themes of identity, morality, and the search for redemption.
The creation of Marvel Comics involves many individuals. For instance, Stan Lee was a key figure who contributed significantly to its success. Other important contributors include artists and writers who have worked over the years to shape the Marvel universe.
Echo is a Native American superheroine with enhanced senses and fighting skills. She has a complex backstory and plays a significant role in the Marvel universe.
Clea is a significant character in the Marvel Comics universe. She's often associated with Doctor Strange and has her own magical powers and storylines.
Disney bought Marvel Comics a while ago and has been involved in its development and expansion since then.
There have been numerous illustrators for Marvel Comics. A few prominent names are Todd McFarlane, Jim Lee, and Frank Miller. Each brought their unique style and vision to the characters and stories.
Hela is a major villain in the Marvel Comics universe. She's the daughter of Loki and has the ability to control the undead. Her powers are quite formidable and she poses a significant threat to the heroes.