How can I find out who is the best shoulder massage therapist in NH or MA?

I need some shoulder work done and I want a massage therapist who understands the shoulder muscles, how they're attached, the origins, the insertions, and how they move.





I want the best.





Thank you.How can I find out who is the best shoulder massage therapist in NH or MA?
i would pick some one who has a good back round on physical therapy and they have to be a female