[westnordost]

Regarding data mining tools for OpenStreetMap, there is also a tool with which one can use SPARQL syntax. This means that one could conflate data with wikidata or other data sources easily, too:

QLever: https://qlever.cs.uni-freiburg.de/osm-planet

Actually, there are two. Sophox is around for longer:

Sophox: https://sophox.org/