I have spent a long time working through the material here, and I always find something more:
Justin Guitar

Justin is a great teacher as well as a great player.

More recently, I have signed up for Active Melody and so far I like it. It's more lesson of the week than structured progression, and more firmly focused on blues and blues improvisation than JustinGuitar:
https://www.activemelody.com/

For me, these two sites compliment each other nicely.

DC