Hi Jojikas,
-I have no experience with hip arthroscopy.
-Early in my hip arthritis treatment I did find a good PT. Unfortunately, it only aggravated my hips, and now I am on my way to having both replaced. If you have a university medical school nearby, they would probably have a sports PT clinic. Next, I would look at PT clinics, where they may have somoeone certified in sports. A bonus would be a PT who is also an athlete in your sport.
Good luck.
Gary