-
You can use StreetComplete to add some details, but not reviews or photos. It's what I use to add opening hours and addresses for existing POIs (it can't add new ones).
-
InfluxDB
Purpose built for real-time analytics at any scale. InfluxDB Platform is powered by columnar analytics, optimized for cost-efficient storage, and built with open data standards.
-
Give https://mapcomplete.osm.be/ a shot. There are multiple maps there with all their own topic such as shops, pubs, restaurants, ...
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a more popular project.