For the average office-type chair, the sweet spot you're looking for is a tabletop about 26 inches off of the floor.
Most modern desks have their tabletops at 28-29" off of the floor which is too high for comfortably typing on a typewriter. The larger old school typewriter desks (double and single pedestals) often had a flip top or spring loaded side compartment that brought the surface that the typewriter sat on down to a more comfortable 26" off of the floor. Similarly you'll see desk returns for these desks which are an inch or two shorter to allow for a typewriter off to the side. Many of the same tanker desks had writing drawers that pulled out to provide space over the other drawers for writing and these also make great surfaces for typewriters to be an inch or two lower than the standard height. These desks usually are heavy and take up some significant floor space.
From the 1920s, a variety of manufacturers made stand-alone typewriter stands, typically with two drop leaves on either side and wheels to give one easy space for their typewriter that didn't take up a huge footprint and could be moved around the office or home as needed. Similar to these in the modern furniture space, you might find a variety of side tables or occasional tables with tabletops at a more comfortable 26-27" for your typing.
For off-label use cases, you could try a counter-height stool (24-26") as a temporary typewriter stand to pair with most standard office chairs. Generally bar stools are much taller in the 36" range, so don't do this unless it's your intention to type standing up.
I've got a 20 drawer library card catalog with a tabletop height of 36.5" that makes an excellent height for a standing desk for typing.
reply to u/The-Wolf-Bandit at https://old.reddit.com/r/typewriters/comments/1q6e8oo/what_do_you_guys_have_your_typewriters_on/