Isolt sounds like an awesome fit for either one! I could see her and Fiora possibly becoming friends, and I could totally see her becoming a mentor-type figure to Oralee :D Considering Ori has a support-based power that can easily be used against her/for the wrong purposes having someone who is looking out for her would be a good thing.

And if you'd like, Fiora could do a commissioned piece for Anastasia so they have a professional/business type relationship? She could do a painting or something idk XD

Lemme know if you have any ideas!