LPCs!! Need advice on becoming a religious trauma counselor

I feel at a bit of a loss.

I'm a young mom, who left the professional world about five years ago to stay home full-time with my two young kids. Before that, I worked in public relations, administrative and communication-related fields. I have a desire to potentially get my masters in counseling once my children are a little older and are in school, in a year or two.

My SPECIFIC interests are religious trauma / complex PTSD and how/where those worlds merge. My husband and I both went through the process of deconversion over the last five-ten years, after growing up heavily involved in fundamental evangelical Christianity. We both consider ourselves atheists now, and that process has greatly impacted us both.

My question is, how.. like where do I even start?

My husband just keeps telling me to study as much as I can. Yes... good advice. Put practically, what does that even look like? What should I know before applying to grad programs? Logistically and academically.

What topics should I be studying in my free time?

I feel like a lot of "religious trauma courses" are sketchy at best. How do I know who/what info to trust? This seems like an emerging part of the mental health field.

If you're a LPC, I'd love your advice. Especially if you specialize and/or have colleagues that specialize in religious trauma. ESPECIALLY if they're parents.

I'm willing to do the work, I just need to clarify the path.