Hi Erica,
I have been working on a grant-funded project working with trauma-impacted parents where we focus on brain development and basic attachment principles at each well child check for the baby's fist year. We utilize Promoting First Relationships during the visit. PFR has been around for a while and is strength-based, which we like. Another program recommendation I would give is for Circle of Security. It was created for use in a shelter for homeless teen moms and is excellent for helping parents to recognize (gently) how they might have been parented and how it can affect their own parenting, even subconsciously through what they have labeled "Shark Music". We have run some groups for parents in collaboration with our local YMCA (to provide child care and space) and have had incredible feedback from the parents who have participated. I don't know if you have the means to attend either of the trainings, but even the videos available on the COS website (free and meant to be shared) are a very helpful tool. I love the NBH TED Talk video for the nursing students that I work with, but it might be too much for traumatized parents. Depends on who they are, I suppose.
Hope this is helpful, thanks for doing the good work!
Kim