For a starting coach, I recommend doing thorough research. Common inexpensive places for a coach to start is a shared office. There are plenty of psychotherapists, psychologists, medical professionals whom don’t work full time and would love to share an office space.
Another a recommendation I would like to do is consider teaming up with other professional, in order for both of you to piggy back off each others clients. Coaching or NLP based coaching wonderfully compliments with psychotherapy, hypnotherapy, or any kind of body work. Students of mine have found their coaching homes in the buildings of therapists, chiropractors, general practitioners, vocational guidance council, etc.
Now if any of this isn’t your cup of tea. You are left with two choices: coach anywhere except your own office, coaching from your home.