Sitting statically as a desk for 8 hours a day, even with a standing desk, takes it’s toll on my lower back. After I roll myself (back down) on top of a yoga ball, I use my Taotronics massager. It really helps in my problem areas.
https://www.amazon.com/TaoTronics-Percussion-Massager-Portable-Post-Workout/dp/B08KDW51GM

