Some people do not want to 'share' a therapist with someone they know. Often this service is limited to a set number of meetings. Whatever the source, you should meet in person with at least three therapists before deciding, unless your situation is an emergency. Make it clear to the therapist when scheduling an appointment that you will be meeting with several therapists before making a decision. Approach your choice of therapist as a consumer.
Many people feel intimidated by counselors.
Try to avoid this pitfall. Sometimes people idealize their therapist. Therapists are human with strengths and weaknesses. Most are better at working with some kinds of clients than others. Find out as much as possible about several therapists before choosing one.