Favorite inexpensive office chair?

I currently have a broken, cheapie chair and I desperately need a new one. Mine has been broken for like 5 years 🤦‍♀️ and it's killing my back. I already have back problems as it is, so I really need a good chair. I just dont have much to spend on a new chair. I have been keeping an eye on Facebook marketplace and places like that, but I'm not finding anything.

I need suggestions on where to look for a new one, or if you know of a specific chair I can look for