There are lots of recommendations for Herman Miller - just wanted to point out this is their CEO: https://www.youtube.com/watch?v=HpYln4ZD0gk

I have a Herman Miller Aeron and kind of wish I had gotten SteelCase instead. Either a SteelCase Leap (any version), Gesture, or AMIA, they all seem nice.

I've lobbied for standing desks since I got mine and not about to stop ! If you're able, consider getting one. Mine changed my life. I alternate between standing and sitting throughout the day. And it's not just a matter of comfort or back pain (which btw is completely gone): I'm generally more awake, active and productive now. Before that I worked standing up for about a year and a half, and while the change was good, that was excessive, and my knees started to hurt after some time. That's when I understood that what really matters for long-term comfort and health at a desk job is movement. All the best,

I actually am comfortable enough in a dining room chair at home (I sit forward not back) so no equipment rec but I am going to recommend yoga and, well, not sitting for hours at a time. Get up and get water. Get up and go pee. Get up and get coffee. Get up up and go pee again. Get up and stretch. It's very risky to your health to sit for too long.

If I was required to sit in a chair for hours, I would insist my supervisors allow me to sit on this:

And of course these are made in actual chair models too, with a stable base and a backrest and everything, but I would prefer the actual ball. Very healthy for your spine and core muscles, if you're required to sit, this is the healthiest method.

I have a Hayworth Zody but would also recommend steelcase gesture, knoll generation, and Herman miller aeron. I got mine from the used office furniture store in town for 200. Ordered new arm rest caps to replace the old ones and it is going strong several years later. Also second those that suggest standing desks, used office furniture place again for that, I have a $1200 steelcase that was 200ish but like new.

For mid-tier chairs I can recommend both the Markus from Ikea and the Ergonomic Chair from Branch. The Markus is generally more relaxing and feels really nice to lean back into. Whereas the Ergo feels more like it wants you to sit proper (and it's adjustable). The Ergo def takes an adjustment period do to it's "proper" posture, but after having it for a couple months now I don't even notice

Either should run you ~300 USD

It really depends on how tall you are, your body type, and your budget. I'm small, so I hate the older Aerons (which is almost all my office had when I started), but the newer ones are a lot more adjustable so it might be better. I have a Steelcase Amia at home that I liked enough to order for work, too. Both of those chairs are pretty expensive though, so they may not be realistic recommendations.

Herman Miller Aeron. Tested reliable and proven.

I prefer a mesh chair to prevent sweating, with an adjustable headrest. I bought an Office Max branded chair years ago and it has held up perfectly.

Do you tend to sit upright with your feet flat on the floor? I went with a wide flat chair so I could sit cross legged. I’ve tried and disliked the ergonomic chairs that lean slightly forward

Don't think they used to be called this but I've been using a decent Staples mesh chair for 4 years now and it's AMAZING without having to spend 300 dollars. It's either this one or a slightly more expensive one made out of nicer materials

https://www.staples.com/union-scale-flexfit-hyken-ergonomic-mesh-swivel-task-chair-maroon-un59462/product_2257054

Maybe not for everyone, but I really enjoy my Swopper stool. Mostly because I can't sit still and it allows me to bounce around all day. It takes some time to get used to, but it's great for keeping your core active during the day.

One downside is that I caused sea sickness with a colleague during a conference call due to all the bouncing :)

I have a steelcase chair I like a lot. Not sure of the exact model but it’s got great back support. I paired it with an autonomous standing desk to stretch my legs here and there when I’ve been sitting too long.

I have the GABRYLLY Ergonomic Mesh Office Chair from Amazon and I love it.

I have upper back pain due to minor scoliosis. I'm also 6'1" so it's more challenging to find chairs that support my upper back well.

I bought this one because it has a lot of the features of the $1,000+ Herman Miller type chairs, but for less than $300. I bought it during the pandemic and figured if it lasted a year or two it would justify me forking out the money for the real expensive ones. Well 4 years later I'm still loving it.

The only complaint I had was the wheels are kind of crap, but I replaced them with some $30 rubber ones that look like rollerblade wheels. They are smooth fast and don't destroy my laminate floors.

Yoga ball office chair. They're silly looking, but it's more convenient than a giant yoga ball.

Basic Ikea office chair plus ergonomic butt cushion. No need to spend a ton of money.

Been using a Branch chair for ~2 years after having a cheap ikea chair for 1. Definitely notice the difference. You're going to want some adjustability, especially with lumbar support and arm height/ width.

Otherwise, the biggest thing to feel better is just getting up every hour or so to move around. I try to go for a walk/ run once a day since leaving retail and losing 10k steps of physical activity.

By that same token, sit-stand desks are nice if you have the spare budget. Otherwise, just get a nice chair and exercise.

I like my Herman Miller cosim by and large... I have experienced tailbone pain though. I'm not sure if it's the chair or just me getting older really.

I have an oversized "gamer chair" with a "footrest" that extends the front of the chair that allows me to sit cross legged on it. I replaced the base with a metal one and got rollerskate wheels. It's now quite sturdy and works well for me the last several years.

I use a flexispot standing desk converter (it's like a big tray that goes on top of a fixed desk). I highly recommend doing so if you're going to be at a desk for hours every day.

My chair is nice af, and was provided by my workplace. If you can afford to go Herman-Miller (we're talking $1300+ for a new chair), do so. Your spine and butt and entire skeleton will thank you. Mine's an Aeron model

Don't stop with just the chair. Make sure you keyboard and monitors are at the right heights. Consider getting an ergonomic keyboard and mouse (or trackball). The positions of your shoulders arms and wrists have a significant impact on overall comfort. They will also keep you from developing an RSI.