My medical Ins website has a "find a doc" , it includes chiros, and other alternative care.
or
http://www.chirofind.com/mpacms/dc/locator/home.php

after you get a few names , checkout their websites and any extra training they may have had..
Often once you mention chiro care around friends or family , many may have names to share ..

I like to drive by, or do a google street view to see what the office & area looks like..
successful or a not so successful..
And if it isn't a fit during the first visit , make an excuse and leave..