I had to search for awhile. I checked the local hospitals and was lucky to find a strength training class at one hospital rehab center that was offered to anyone. At the end of the six weeks I signed on for individual sessions. So maybe check local hospitals, or start with your gym staff or other members. They don’t have to be experts in osteoporosis, but they need to be experienced working with an older population and willing to listen. You can always change.educate yourself first about safe movements. Sherri Betz is a good online start.