Can anyone recommend good PTSD therapist?

I dont know where to start looking. My younger brother was in a car crash that has haunted him for months now and I just want him to go to therapy. I will pay for his therapy but I do not know where to even look. Does anyone have recommendations for PTSD specialized therapist?

He feels light headedness when he drives sometimes and it has affected his every day life and I want him to get better. Any recommendations would be great thank you!