This was an interesting article of the list of people considered with a child in adoption.

General Placement Preference:

Birth Mom or Birth Dad

Birth Relatives the child has a relationship with
Birth Relatives the child does not have a relationship with

Current Foster Parents

Kin - people in the community or in the child's past that have/had a relationship with the child (past foster parents, school teachers, neighbors, sports coaches, etc)

Unrelated foster/adopt family in the child's community

Unrelated foster/adopt family in the child's state
Unrelated foster/adopt family outside of the child's state

[attemptingagape.blogspot.com]