There is not a chair I can think of that I would pick over my HM Embody. I've had it for 8 years now and it helps me so much with my back and feeling good
3141R1 from ConceptSeating, most comfortable chair I have ever owned and have tried a lot of chair but picked this over anything else, including the vaunted Herman Miller chairs
Humanscale Freedom with headrest. Beats even the Herman millers we had at office. Since I bought that for covid remote work, I'm hoping to never have to change it.