There is literaly none? tell me one, Tigra? Elsa bloodstone? Clea? outside Black Widow small characters are not getting movies, except for maybe Blade.
She Hulk is a series because Universal weird deal, Ms Marvel is a small character related to Cap Marvel, same with Spider-woman with SONY.
Besides basically all the movies are getting female co-leads, Wanda is on this, Wasp already took the title from Ant-man, Jane Foster is going to be Thor, Eternals was lead by Sersi, etc.
I did not know you has to be powerful to deserve something, I LOVE Wanda but let's not act that she should get a movie just "because she is strong" and popular, it's not like she is being ignored when she has been non stop narrative wise since Endgame.