I need something to move an armor stand one block above the ground in any direction. If possible, the armor stand should realign itself at the corners
It has to work with commands, e.g. Like this design with the glazed terracotta, for which I unfortunately can't find a 1.16-compatible version.
At Minecraft wiki you can look up everything you need
And what do I have to look for?
https://minecraft-de.gamepedia.com/...%C3%A4nder
looking for armor racks like you wrote