I don't know any specifically, but there are a lot of good yoga guides on youtube for specific parts of the body, if that's something you'd want to look into!

I hear setting aside specific times of the days you want to workout helps as it sets a routine. Google has been my friend when looking for specific stretches and exercises for whatever ails me at the time

I go to Pilates, I find having a scheduled session time for exercising is a lot easier and I am looking at adding other classes soon potentially. Another way is by having someone else going with you, motivating eachother to go swimming or for a walk etc. Swimming is a good option for back issues as it's using the muscles throughout your body without the pressure of gravity on you as much.