Use Google to find out more.
Once you have a fair amount of names, try Googling them.
Many, but not all, reputable therapists have work published that is available for public consumption. Reading someone’s research can give you a good idea of their style.
You may find a website for their practice that includes information about their training, areas of specialty, or testimonials from other patients.
All of this information can help you decide whether someone is potentially a good fit for you.