Thanks for these suggestions, I will check them out. I've read both good and bad reviews about the various chairs at costco and ikea, they all seem fine to me when I sit in them but then I've had two $100~ chairs start to give out in 8-10 months and then be passively irritating for another year or so before becoming intolerable.

I'm working from home 8+ hours a day in a Lifeform chair that I can't find the model number on the internet(looks kind of like a legacy 900 but different fabric and adjustment arm placement). My mom bought it in a shop in Austin probably 15+ years ago and gave it to me when she closed her office. It's comfortable but extremely heavy and almost too adjustable, all of the moveable parts creak and don't stay where they are set reliably.