Cheapest Possible Graduate Degrees? National Accredited OK

[Thorne]

So, I'm in a really unique position. After finishing my Bachelor's through WGU, I landed a well paying job with an absolute nightmare boss. About two years in, everyone in the company did a mass exodus and fled to greener pastures. I have a nice pathway to migrate to Australia, where any degrees I bring over are basically going to be seen without too much discrimination as long as they are accredited by an agency recognized by the US Department of Education (HELLO DEAC, my old friend!). I mean, sure, M7 or Ivy League are better, but there's not much functional difference between the University of Texas, WGU, and The University of Randomness.

Basically, what are the cheapest and/or fastest options for degrees or certificates, graduate or undergraduate, that are available with at least National Accreditation?

There's obviously University of the People and NationsU (currently offering 3 months free tuition and is NA).

What are some others?