I’m going to share my go to stretch for my neck and shoulders. This one is a little awkward until you get used to it, but it really helps loosen up my neck, shoulders, and back. I even find that I have a little more space in my ribs after doing it.
If you have physical neck limitations, this stretch could be a little of a problem for you. Things like herniated discs or fused vertebra may make this out of reach.