90% of the time:
-Cinderella greets you at the door!
-Aurora, Snow White, Jasmine & Ariel
When one of those girls has the rare occurrence that their kingdom needs them, you could see Merida, or Rapunzel instead. (these girls are the main two that like to fill in, I've seen photos over at Akershus with Alice, Mary Poppins or Mulan too, so really it depends who's not needed in their own kingdom)