Based on the previously posted ancillary i think that Tuon must be a ancillary and a hard one to get.

Faile, Elayne, Aviendha and Min are all ancillary then why not Tuon Mat's predicted wife ?

She comes late in the story and she didn't have much actions yet and all of them related to Mat so ancillary is the best choice for her.

I am thinking about Daerid, Talmanes and Nalesean as ancillary for the commander of the Red Hand Band.