Good chair for random lower back pain

[RustyYid]

Hi guys,

I'm in need of a new chair as my current old busted IKEA one is actually falling apart now.

I do sometimes suffer from lower back pain although I would call it acute not chronic. I've read lots of good things about Steelcase Leap and Herman Miller Aeron and Noble Icon. I 100% can't afford a brand new Steelcase or HM but if I was to procure a second hand one has anybody got any trusted websites to go to?

Thanks for your help

 

[RustyYid]

Thanks everybody!