Best office chair to ease meralgia paresthetica and lower back pain?

I’ve been using the Herman Miller Sayl for three years, and it’s done a lot of good for my back, but over the last 4–5 months I have developed meralgia paresthetica which I’ve noticed gets worse when I use it. What sort of chair is good for 7+ hours daily, with a supportive back but also not much pressure on the back of legs?