Jodel - What is Jodel all about? Jodel is the community that shows you what's happening in your area in real-time.
Dapp Store - DappStore is a platform, which lists all popular dApps
Berkanan - Chat with people nearby. Even offline, on an ✈️.
DappRadar - A list of the best decentralised Ethereum applications
Treadie - Create your own micro-social network for topics
AppScope - Appscope, one of the leading directories for Progressive Web Apps (PWAs).