It's hard to give an exact number. There are a ton of Marvel characters that have been featured in various adaptations, but it changes over time and across different projects.
Definitely. Captain Marvel is a female character in comics. She represents female empowerment and has exciting adventures and battles in the comic storyline.
The 'X - Men: Dark Phoenix Saga' is another one. Jean Grey, as the Phoenix, has a powerful and complex story arc. Her transformation into the Dark Phoenix and the events that follow, including her battles with the X - Men, are very engaging and show the depth of female - led storylines in Marvel Comics.
They would probably support each other in different ways. If there was a threat that involved both magic and superpowers, they would combine their skills. Ms Marvel could use her flight ability to get a better view of the situation while Harry could use her magic to create distractions or barriers. Emotionally, they could become great friends. Harry, who has lost many friends in her battles, could find a new kind of friendship with Ms Marvel. And Ms Marvel could learn a lot from Harry's resilience and determination.
The X - Men might have mixed reactions. Professor Xavier would likely be intrigued by the potential for better mutant - human relations in the future. However, Wolverine might be skeptical and on guard, fearing that the future holds new threats to mutants. He's always been the more cynical of the group. The different reactions among the Marvel characters would add a lot of depth and interesting plot points to the fanfiction.
Definitely Loki. He's a fan favorite and can easily fit into various crossovers. His mischievous nature can add a lot of twists to a story. For example, if he were to cross paths with the Fantastic Four, he could play all sorts of mind games with Reed Richards while also being intrigued by Sue Storm's powers.