The biggest change in my life was a sit-stand. Build your own desk from a set of electric sit-stand legs from primecables.ca
Get any flat top from any source (I used an IKEA solid wood countertop) and bolt it on. Or get a pre-built.
https://www.primecables.ca/p-369396-...bles#sku440652
https://www.primecables.ca/p-390345-...ped-table-base