17. America Chavez
While Multiverse of Madness did a great job of formally introducing America Chavez in the MCU, the movie wasted much of her potential by having her spend most of the movie on the run and as a secondary character rather than fully realizing her potential. The good news is that the film positioned the character for a larger role by having her begin training at Kamar-Taj.
After getting time to train and hone her abilities, we want to see America Chavez truly come into her own when the Avengers next assemble. Marvel needs to set her up for success, rather than wasting her potential on the sidelines.
16. Joaquin Torres
This one might be a bit premature, but when the time comes for the Avengers to assemble again it seems safe to assume our new Captain America will be present and the new Falcon should be right alongside him. While we haven't yet seen Joaquin Torres fully ease into the Falcon persona, Joaquin was a true highlight of The Falcon and the Winter Soldier and we can't imagine Sam Wilson's Captain America fighting alongside an Avengers roster that does not include Juaquin's Falcon.
What's better than one Hulk on the Avengers roster? Two Hulks, of course! Whenever the time comes for the Avengers to assemble next on the big screen, we absolutely want to see She-Hulk join the roster to fight alongside Earth's mightiest heroes.
Not only would She-Hulk be an incredible asset to the Avengers lineup given her strength and abilities, but she could also help inject a shot of humor into the lineup. I can just picture it now, She-Hulk breaking the fourth wall mid-battle to deliver an unforgettable one-liner.