@trixiegirl, I did Onero online for a few months, but I didn't care for it and I think it's because they keep you doing the exact same things for either 2 or 3 months before you can advance and it's nothing like what they do in the gym with weights. I'm sure many love it. I didn't get this far, but you can watch this for an idea of the exercises and yes, you can definitely cancel at any time. https://onero.online/

For myself, I really like Brick House Bones on YouTube with Lisa Moore, DPT. https://www.youtube.com/playlist?list=PLgPe7PS6flPwbaBmUhPulj3-aqiSH9R-V

I've also read many positives about Margaret Martin, also on YouTube.