Stretches to do at home to be pain free
4 Ways to Crack Your Upper Back - wikiHow
Banish Pain Permanently: Basic Drills to Repair Your Posture - Breaking Muscle
Sitting Floor Twist
Twisting Postures for Grounded Flexibility - YogaUOnline
Supine Spinal Twist Pose Ii Yoga (Supta Matsyendrasana II), Yoga Sequences, Benefits, Variations, and Sanskrit Pronunciation
Dump the Slump
8 Twisting Yoga Poses to Ease Back Pain - Yoga Journal
Upper spinal floor twist 
Egoscue - Upper Spinal Floor Twist
20 mins Posture Routine for Kyphosis (Rounded Upper Spine)
5 Health Benefits of Supine Twist - DoYou
The Best Thoracic Spine Mobility Exercises - The Barbell Physio