Suggestions by @user_355311

Miles Morales (Spider-Verse)

as Riley Andersen in Crossover Shipping

Score: +6

Rapunzel (Tangled)

as Elsa in Crossover Shipping

Score: +4

Riley Andersen

as Meilin Lee in Crossover Shipping

Score: +5

Robert Downey Jr.

as Big Hero 6 2 in Actors who should Star in Franchises

Score: +16