Functional Family Therapy would be a great next hub for me to write as would Multi-Systemic Therapy. Both of these for biological parents with serioulsy behavior disordered teens. These would link nicely with MTFC foster care and the marital hubs I've done would be good advice to help foster parenting couples and parents with teens facing serious,negative peer-socialization and drug problems, to reinforce their relationships under specialized parenting stress.
Anger-management would link to all of these as emotional self control is critical to effective communication and problem solving in every context described.
Thanks for creating the thought-space in this question!