First, thanks for an interesting and informative article.

I thought this might be of interest: "Two Possibilities for MMT" (here in Medium but not behind the paywall).

It is a monetary paradigm that was developed independently of MMT but connects (in a way) with it. In it money would be created as needed--though without involving debt in any way--to fund a guaranteed minimum income and, if so desired, all government (from local to central), using current per capita total government spending as the base. A mechanism other than taxes for withdrawing money from the economy is included.