Sit fit . I am disabled and sit fit is not a soft option we have a good workout. We do exercises sitting down and standing using the back of the chair plus walking exercises.
I have static pedals at home I use do 300 rotations a day . Our sit fit instructor gave us 7 wake up morning exercise in January I do them every morning once dressed. Plus do weight bearing exercises which I use 500g ankle weights and 500g dumbbells.
During class we use 1kg weights but I can't use them hence I brought the 500g weights and take my ankle weights to class. We used resistance bands straight and circular .
I can't use gyms and the atmosphere isn't for me. We have a laugh during sit fit and a chat . Our oldest member is nearly 93.
The council I am under does active ageing sit fit classes 12 weeks for free.
My brother swims every morning for a hour lengths and walks minimum 10,000 steps a day ,has an allotment and uses weights at home .
Our instructor always says you should feel the exercises but if it hurts stop. I am fitter at 66 than I was at 50.
Have a look if your local council run exercise classes plus local church halls and libraries rent out rooms for exercise classes .