It's refreshingly high-touch, in the digital era. 

Newsprint broadsheets. 

Harvard's  Zone 3 project in Allston, Massachusetts puts them to great use: distributing Art in Print newsprint posters for 25 cents. 

The crucial partner: Newspaper Club, based in the UK. 

Newsprint even works in a Covid climate, since individual papers haven't been touched by human hands, and have likely been sitting outside for days or weeks by the time you pick one up. 

If you're interested, free sample packs are available.