Killian will start working for Thorir shortly, maybe she could visit him at work (it's in a smithy, there are tons of metal, idk if that would be a point of interest).

And there are two boys Jón and Albin who are 15... I think one of them should be in a band and the other more interested in some kind of sports, but I have no actual headcanon on that yet, I want to leave them vague just in case. Does that help?