Chair

First, don’t look for perfection.  The best case scenario might be ten minutes of comfort at a time.  Assemble a collection of inexpensive, lightweight seating pieces.  Use a series of blocks, to adjust for height.  When one option loses its comfort, replace it with another.  Remember to move around (on your feet) periodically.  This can get the blood flowing plus provide a mental break.  Be open to experimenting and audition seating surfaces that seem counter-intuitive; these may just yield the best results.  Isn’t that what you’re looking for?

What's your budget?

We have a vintage Stressless chair and ottoman from about the late 70's, early 80's and it's still in great condition.  It is sooooo comfortable.  It does need a button restitched, but other than that, it's fantastic.  We bought it used for a few hundred dollars about 5 years ago and it's been great.

From what I've seen, the Eames chairs, (my dream) used are around the $3500 range, or so.  But there are some replicas that might be fine for you.  

If you buy used, you can always get most, if not all of your money back if after a while you discover the chair isn't working for your back.  

@lanx0003  Not sure if you're aware but the back headrest of the Puang simply flips to the rear moving seat position more upright and lowers the cushion height behind the head. Makes a huge difference.

@audphile1  I got the Puang with matching ottoman. Dark grey fabric.  ( I hate leather) Had to tweak it a little. For me, it was a bit too firm and laid back too much. Needed to be more upright.

First was double the thickness of the seat cusion. Un-zip and add 2" foam cut to size.

Second was glue spacers on the rear of the leg support to create a little more forward lean but this alone wasn't enough. Put a couple of books on the floor first to test the amount of forward lean.

Third, easy, the Puang headrest simply flips over to the rear moving the back seat cushion MUCH more forward and sits more upright. A small thin pillow can be added behind the back cusion if need be. For me this worked perfectly and I love the chair.  

The chair is now super comfortable. Light weight and looks nice.

The Eames chair has been replicated over the past 60+ years for a reason?  Add the right small cushion for lumbar support if needed?  I've looked at the Stressless furniture in the past, but just can't justify the asking price. 

I too was wondering if a pass labs clone would be the same as the original. 

Yes the Stressles are expensive and there are a couple of reasons to get one.  The quality and comfort are excellent.  I currently have a home theater chair in my listening room.  It's too bulky and the most of these chairs have a back that is too high and comes above your ears.  The "Mayfair" large Stressless is perfect and my ear lobes when seated are about 39 inches above the floor and the back is at 38 inches. 

I had a stressless chair but the back extended up past my head so I didn't like it for listening to music; I've since replaced that with a real Eames chair and ottoman, and while it sits just a tad lower than I'd prefer, the sound is much better for me than with the stressless. 

BB&B chair is probably flimsy as hell. Doubt it’s any good at this price. 
Wondering if the Eames replicas are any good. 

I got my mother one of those, she made it until age 101.

Like anything else, they come in sizes. Once she agreed to let me buy her one, Lazyboy in Maine sold my mother a chair they had in stock, it was made for tall men, she was a small woman. I visited, saw several pillows in it, asked her, found out it was too deep for her short legs, did some research, raised hell, made them exchange it for a proper size version.

I had a great office chair I wore out: these days, it is hard to find what you visually like to actually sit in at a store, and similar models can be quite different regarding comfort. I bought and returned two, finally found one in a store that I liked, gave them a chance to come close, they wouldn't, ordered it online, but at least I knew it fit me.

We might all want to think ahead and choose something future-proof...🙂

If it fits your body, and doesn't give you pain, if you know it is good quality and gives you comfort, think of it as well worth the price, the most important piece of gear you own!

Keep cost low: Bed Bath and Beyond is now online only via Overstock, low price, many color options. seems the footrest is independent so you can stay upright with legs supported, some, the foot only come’s up as the back lowers, not good for listening to music. 

the open base is far less heavy looking than most recliners, other models

https://www.bedbathandbeyond.com/c/living-room-seating/recliner-chairs?t=24459&featuredproduct=28258355&featuredoption=83828697&ci_sku=33341981-000-005&cnc=US&cid=328168&type=pla&targetid=&track=pspla&utm_source=google&utm_medium=pspla&gad_source=1&gad_campaignid=19633571712&gbraid=0AAAAAD_EGx8p3bu_fhg7dhrxTYZ-cepuw&gclid=Cj0KCQjw097CBhDIARIsAJ3-nxeDM41UFBff-Fd0Uf_jYljKjF-Wsha--69Mxzh2I2mSBvRu-cHBT_YaAisUEALw_wcB

at this low price, if it doesn’t work out, it may cost you too much to return it, plan on alternate use, yard sale, give to someone.

I've got a Pair of Chairs with matching Leg Support Stools in the listening room that are quite similar in the design to the Stressless Design.

These were a £1000 (receipt supplied) as a new purchase which I bought used and with a Leather Upholstery in immaculate condition for £100.  

Leather is fine as I don't listen in overwhelming heat, also I'm more of a autumn / winter listener for long periods in front of Speakers. Fabric would be suitable if extreme heat is present when listening is occurring.

Cushions don't really remain put on leather, so an anti slip aid will help or go for a Fabric Upholstery. 

I've always wanted a Massage Chair seen in Shopping Malls, but it is an absolute luxury and will most likely produce a noise during listening that is a detraction.

The Link shows the idea for a chair, but I would probably pay more to get one to fir my frame size.

https://uk.royaldeals.co.uk/product/massage-chair-full-body-neck-shoulder/B0DGQDQ3JX/

Stressless looks nice! More than I wanted to spend though. 
 

Going to try the Poang in ikea as well. 

The Poäng chair and ottoman are good, but they don’t suit everyone. I need to place an additional cushion behind my back; otherwise, I feel the need to hunch and tilt my neck and head slightly forward. With the extra cushion, my posture is corrected to a more upright sitting position, which feels much more comfortable. I suppose the ergonomics of the Poäng chair could be improved, but it may still suit some people on a case-by-case basis.  Go try it yourself and see if it works for you. I’ve fallen asleep on it many times with the music playing.

Eames lounge and ottoman, its a classic and comfy as he11

Ditto @overthemoon Ekhorn stressless. What I find that I like about them is that when you sit in them, you’re not constantly shuffling around trying to find that comfortable spot in the easy chair. 

+1  I also have a Stressless chair and ottoman.  

I've seen them used and in perfect condition in a number of locations(Chicago & Sarasota) for about $1200.  They sit a little low-ish, but offer good support.  The cushioning isn't like a cushy recliner.  It's thinner but pretty supportive. Comfortable.  They make about a half dozen different models and each will be available in S, M, & Large to accommodate different height people.

I have a Stressless chair and ottoman.