Herman Miller Cosm. Pricey but has been worth it for me personally. Been using it for 4+ years every day for my desk as I’m fully remote.

Seconding Cosm. Got my mid back a couple months ago and love it

Embody and 100%

I recently switched from Herman Miller Mirra (great chair) to an Autonomous Chair Move (stool) and really like it. I feel like I move a lot more during the day now. The Autonomous products are also generally more cost-friendly than other options.

Interstuhl Vintage IS5 Nexus 11v7 - different color combination than the link below, but same model. It’s brilliant.