My current t was found via professional referral (though at the time the t who referred me was only referring for a group. She later dropped me and this t picked me up. Best thing to happen though).

Prior t's were found through insurance or Internet search. My first t was an assignment from a student work position, and several t's after her were through the college. Only one was found through personal referral, but she wasn't available and the practice partner I ended up with want a good match.