If you're in the US start from your insurance provider. Most insurance has directories of in network people. Psychology Today also has a very good index of therapists. If you're uninsured need based discounts are common.

Most therapists give some kind of statement about their approach, past experience and list their areas of focus. Find one who matches what you want and schedule a first appointment. During this session explain your difficulties and see if you like their communication style. A good therapist will also tell you if they think it's not a fit. Not everyone clicks with everyone so don't be afraid to back out and don't read too much into it if they do the same.