These ideas work best for chronic shoulder pain. If you recently hurt your shoulder, I would not start messing with these strategies unless you have been evaluated and they are indicated for your rehab.
All of the strategies will have multiple videos to help guide you through the process. These are strategies I have used with both clients and patients to not just manage but ultimately resolve their shoulder pain.
I am going to go over each in more detail, but the 5 strategies are:
Thoracic mobility - if the t-spine lacks mobility the shoulder and neck try to compensate.
Assisted range of motion (ROM) - if your ROM is limited, use something to help assess and improve your ability to move the shoulder and arm.
Supine exercises - this position helps utilize improved thoracic mobility, supports the body and makes controlling shoulder movements easier.
Rows - rows are shoulder-friendly and most people do not do enough of them - especially those who have shoulder pain.
Isometrics - learning how you can engage the muscles around the shoulder is key to managing pain. These are way harder than they look.