Ashenfall could be a best friend or adevnturous friend [even though she isn't exactly the adventorous type, I thought that since the adventorous friend might become the future mate and her future mate is part of a plot where he dies that might work, but she is older and that will be in a while]

Alabasterdusk could be a friend, they'll rarely see eachother as he isn't a very social cat but I think they could work out well as friends. Perhaps sometime in the future she could figue out how bad he is at hunting and that he lied about that, but help him?

Mothpaw could be a cat she helps, because Moth has so much drama in her life that she would need to have someone who could help her. Her little sister Sil could also ask for adivice in the future

Weaselshade could be an aqquitance, given as he's Mothpaw's adoptive father maybe that's how she heard about Slate.

Oriolepaw could be a friend, I think they would get along well, and Oriole could use a warrior friend