Good chair that is affordable ?

The other day someone asked this and everyone recommended a $1,400 chair. I can’t afford that, I can’t even dream of affording that. I’m looking for something with good lumbar support for ideally under $400 tops. Does anyone have any ideas?

And Inb4 someone says “buy one used / second hand” I looked and they’re still pretty pricey. My current chair is falling apart so I need to do something soon.