Fan Casting Untitled Spiderman, Ms marvel, and Nova crossover/ MCU champions

During the fallout of Civil War II, Ms. Marvel, Nova, and Spider-Man quit the Avengers and strike out on their own! With Viv Vision and the Totally Awesome Hulk by their side, these young heroes are determined to change the world their own way - and they're only the beginning! It starts as an idea. It becomes an ideal. But what happens when it turns into a movement - one so big even the Hulk can't stop it? I have no idea for a story, just a general idea as to who should play them and a villain to fight. They could follow the champions story line or not.