Unfortunately my L1 visa doesn't allow me to have any other source of income than my current employer. But definitely this is something to look into once I get a Green Card.
Some of the "expat threads" I've seen on Reddit where people yeet themselves to the other side of the world and hope it works out only to fall flat on their face are pretty eye opening. By testing the waters with "proto-contracting" like this, you can at least give yourself some idea of what you could get were you to move.
edit: grammar