I don't like the options involving Autokey and others. For me, I found the best solution in Tweak Tool
Tweak Tool. You can install Tweak Tool
Tweak Tool in eOS's AppCenter
AppCenter. Under the Typing
section of TweakTool you can choose Alt/Win key behavior
-> Alt is swapped with Win
.
You can also do Ctrl key position
-> Swap Left Win key with Left Ctrl key
.
I have an operating system agnostic keyboard where I swapped the Super key (aka the ⌘ key or Win key) with the Alt key to look like the Mac keyboard. So far this solution has worked ~ok~ for me, but I would definitely prefer a real solution from eOS since it is advertised as a Mac replacement.