Hey! I feel Marissa would get along well with Asuka as she has a somewhat similar motive, she is trying to find her father who left home when she was very young, and travelling to Doma would be a good start in finding out what happened to him. She knows little of her grandparents, she only knows they fled their Xaela tribe to Gridania before she was born and that's where she was raised by her mother (who doesn't like to talk about the past). She's training to be a dragoon since leaving home and would probably love companions to train with.
Shoot me a message if you're interested ^^
Shoot me a message if you're interested ^^