Looking to make extra income that isn't another shift? Ideas for busy NP?

I'm an NP and lately it feels like every suggestion for making extra money comes down to working more hours. I understand why, but I'm already stretched pretty thin and don't really want to spend my days off picking up additional shifts.

I've been trying to find something healthcare-related that can be done remotely and on my own schedule, even if it's not huge money. Has anyone found something legitimate that's worth the time?