See if you can find any needle exchanges in your area, or even your state (or the nearest city that has one). They almost always can provide very good references to facilities/detoxes/doctors who use buprenorphine.
Methadone clinics can also help sometimes, I mean in terms of pointing you in the direction of other organizations that provide buprenorphine for detoxing. Some methadone clinics actually provide buprenorphine/Suboxone detoxes themselves.
Looking for psychiatrists who prescribe Suboxone/Buprenorphine in your area/state can also help you by directing you to detox facilities that can provide it.
Other than that, T's advice is super sound. A very good way to find the services you're looking for is to go through asking your insurance company. If you have insurance you'll need to do this eventually anyways to make sure the detox is covered.