Three things that have worked for me.  1. If you are not working on Saturday/Sunday - hit the Open Homes.  Bring bottled water, snacks, & gum.  Don't be a pest, just wait until the home is empty, introduce yourself.  2. Attend local real estate morning meetings before they go on a "tour" of local homes for sale.  Offer a prize for Agents that put their card in a hat for a drawing.  3. You ever see Realtor's business cards at homes you are inspecting???  These are CURRENT agents - Take a picture of them, later just send them a friendly email that you offer detailed home inspections, maybe offer $25 bucks (or more) off of an inspection for their clients for giving you a try.  One more, don't forget your local chamber of commence. Become a member, attend some meetings, pass cards out, present yourself!  Good luck!