(In/Off)

Simple concept that could take off.

WWOOF has been around for decades, where you work for a few hours each day on an organic farm, in exchange for food and somewhere to sleep.

Less strict about organic/farms are HelpX and workaway.info.

None are specifically for internet professionals, and listings merely state if the Internet is available. In many rural locations the speed might be very slow. Also, a professional would prefer a quiet spot, with a desk and accessories like printers and large monitors.

A network that guarantees support for digital nomads can get a work/life balance that includes fresh air and nature.

Setting it up isn’t hard, simply a free directory where hosts detail the Internet capabilities that have. Maybe even set up a charity that helps them get the necessary gear.