Tacx Smart Bike as Altenative to Peloton/Spin Bike?

If your family is using it, I would go Peloton. The benefit for you is that you can do the non-cycling classes on the app via tv or whatever screen you use. My wife uses a Peloton, but I ride a neo 2 for training, but I use the weight, mobility, core and stretching classes on the Peloton app. They are very good. That said, if you are primarily the user, get a trainer or smart bike.