
I splurged and got an Aeron Chair because I spend most of my day sitting. Great purchase!

My partner bought me this one a few years back, and it's wonderful:https://smile.amazon.com/Serta-Ergonomic-Executive-Technology-Leather/dp/B00EUU5GFK/ref=sr_1_4?crid=2IHXEDCPDD2EB&keywords=serta+office+chair&qid=1577406437&sprefix=serta+offi%2Caps%2C141&sr=8-4

+1 for the Aeron chair. Check out liquidation stores near you—we got ours half off! There might be companies going out of business that are trying to get rid of a bunch as well. Definitely worth investing in a good chair.

After too many back issues even in the most expensive ergo chair (yes Aeron lol), I went sit/stand desk + kneeling stool - which has been a lifesaver. No matter how expensive the chair I always slouch; while this isn't perfect, it's leaps and bounds better for me.https://www.varierfurniture.com/en_us/explore-our-chairs/kneel/variable-balans-r

Yup, I love the Aeron chair. Consider LucyN's post, also.

I just upgraded mine. I wanted something big and comfy, almost like a mini lounge chair so I went with a La Z Boy executive chair model. $300- it was a great buy.https://www.amazon.com/gp/product/B074P99MC9/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1