In my experience the best way to find someone is through recommendations. Find someone with a good therapist, and contact the therapist for recommendations. They usually know other people in the field that work with a similar approach.
I feel CBT only works with simple issues. For trauma and deep running issues I would suggest finding someone who looks into the root of issues and doesn't just try to change behaviours. See psychotherapy for example.
Otherwise it depends on where you live as well.
In Australia, and definitely for NSW:
- look for a psychiatrist instead of a psychologist. With a psychologist you get 10 sessions for free by the government, but then you have to pay the full fee yourself. This ends up being around $150-$250 per session from what I have seen. With a psychiatrist the medicare safety net kicks in, and after $2000 of out of pocket expenses you get 85% of the session fees back. In my case I end up paying ~$40 for my $350 therapy sessions which makes a huge difference when therapy can be going for years.
Happy to help out with recommendations in the NSW Australia area.