From open bench table : https://openbenchtable.com/
To just sitting on top of a anti static mat…
There are options for how to manage a test computer.
Do you have a preferred case that is portable, stackable, and still easy to work on?
I’ve thought about Fractal cases but they are on the bulky side of things. I’ve thought about a 4U case Silverstone rm44, but then the components are hard to access… and noise goes up
The fractal Terra is small but not stackable; easy access to everything but sata drives. In the past I used a Sugo 13 but the psu takes up most of the space.
Lian li and Asus have some good micro atx options like the tu150 or the ap201. Overall small compact machines that stack are best suited to 1U/2U rackmounts in my experience