I too am osteoporotic and quit osteo drugs due to experiencing side effects from bisphosphonates. I also found another site where NASA states high-impact exercise such as jumping seemed to be a solution - am not sure how the astronauts perform effective jumps in weightlessness. Here's the info and the link:
https://www.space.com/astronaut-bone-loss-jumping-exercise-study
"Jumping provides short bouts of high-impact, dynamic loads that promote osteogenesis [bone growth]," the researchers wrote, while adding that "neither running, cycling, squats, nor heel raise volume were associated with bone recovery." Adding jumping exercise routines to astronauts' existing exercise regimens may prevent bone loss and actually reduce the amount of exercise time needed each day, the authors suggest."