Misty's gunning for Solvunn, and there's little to say beyond that - unless someone previously friendly seems especially stuck on the decision she isn't likely to debate it with them - they're your values, you've got to pick them. Solvunn to her seems the safest bet for 1. Not Dying, and 2. Regrouping, Potentially Gathering Information, and Making A Better Informed Decision Later (If You Must) Without The Pressure Of Imminent Death.

High odds she's going to be very inclined to spending free time in the Horizon, so there's potential for native trouble down the line there.

Default is flying solo as she's not looking to link up with anyone in particular, but if she runs into someone headed the same way who doesn't seem unpleasant she's likely to gravitate despite herself. Safety in numbers, and all.