Free newspaper distribution boxes

https://wiki.openstreetmap.org/wiki/Tag:vending=newspapers. You can refer to https://overpass-turbo.eu/s/OWI for combinations.

something like: amenity=vending_machine + vending=newspapers + payment=no but it doesn't sound 100% right.

What doesn't sound right is tagging payment=no only. These should be fee=no upfront.

Theoretically, such a box is already a "machine". Although the implication of "vending" ia questionable, there's already 6923 (4.95%) of amenity=vending_machine with fee=yes. Will do until anyone raises a better idea in general.

Personal thoughts:

Perhaps one can say an amenity=letter_box is an kind of such box with an address and access=private, seeing how free newspapers are distributed.

This is a good question for dispeners that are not directly payable too, for example coffee machines, and even something as minor as disinfectant alcohol. We have amenity=drinking_water (although I'm not sure what kind of man_made= a water machine itself would be, same for amenity=vending_machine), and amenity=compressed_air specifically.

Adding to my actual answer, I suppose a amenity=vending_machine would be purpose-built for payment=yes (thus could be optionally made fee=no). A dispenser could have payment=no but fee=yes, requiring the user to pay somewhere else (eg at the counter). Whether this constituent a vending machine should be debatable.