Sam’s, Office Depot, Staples were my go-to for chair shopping. I ended up buying a gaming chair off Amazon. Gaming chairs were more comfortable for me before and after my L4-L5 fusion.
KILLABEE Massage Gaming Chair... https://www.amazon.com/dp/B07FCZ696Y?ref=ppx_pop_mob_ap_share
It's one I got on amazon, very comfy. Company is "Killabee" I think it's similar to this but mine is all black.
I just bout a desk chair on amazon that has a foot rest that lets me kinda do the same thing, at least adjust my legs and have them supports. They are all gaming chairs and you can get them between 80 and 160 dollars.
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Edit; I got this one: https://www.amazon.com/gp/product/B07FCZ696Y/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1It also reclines so it I have have a POTS/Dysautonomia attack it's handy
I got this Killabee on Amazon for $160: https://www.amazon.com/gp/product/B07FCZ696Y/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1
Can't sit in it for an hour without my ass starting to hurt.