Can Someone Please Tell Me How to Find Drug Rehabilitation Centers in Salamanca, New York?

I have a friend who died due to the adverse effects of heroin. For a time, I was just angry at drugs, angry at the people who were doing drugs. Don’t they know that they’re hurting their loved ones by doing that? But then I realized that my anger won’t do me any good at all. So now I have decided to help out. I would like to become an addiction counselor and I need to ask around at various rehabs about the requirement before I become one.