I recently purchased a new adjustable desk chair from Wayfair. Normally not a fan of buying furniture without checking it in person but I could not find what I was looking for anywhere at the time. It was actually quite inexpensive (about $60??) compared to anything else I was seeing and is they style/shape I wanted. I don't use this for sewing because it has arms but just suggesting you may want to check out wayfair.com once you decide on a style you like.