Hi Carla! Welcome back.
I think Jessica's workouts are good too and she has a great personality. I am not too much in to walking workouts, but I like her others.
Other series that come to mind are Fe Fit which is a good set up 30 minute workouts, not too difficult.
For intermediate, Cathe ICE is great, no dread factor for me.
If you like dancey type things, I am really enjoying Shaun T's Cize which is not super hard in terms of cardio effort but he does teach some choreography. I would say these are my most fun workouts currently.
Let us know what you decide and how it is going.
I also find that as I get older, I need a little more stretching and yoga, so have discovered Travis Eliot.