I'm looking for a USB-C male (3.1) to Micro-B (3) female cable or adapter. The use case would be to allow last-option charging of a USB-C laptop (e.g. Pixel 2) from a standard phone/tablet charger (Micro-B).
I found a cable on the site below, I found it by googling "USB-C male to Micro-B female adapter"
you might also look at the monoprice.com site
Male USB 3.1 C to male USB 3 micro-B seem easy enough to find but ones that have female USB 3 micro-B connectors, not so much. Perhaps a gender adapter.