Closed
Description
How about when the user take an image to upload, the location is checked against Wikidata items without image nearby (say, 200m), and then presents a list of all these under the heading "Is this a picture of..."?
Likewise, items near the location can give you a "administrative area", or at least a very short list thereof; follow that Wikidata list to "higher" units, and present the lowest one with a Commons category, as a "location category".