Did you know that you can easily participate in improving OpenStreetMap? You can add your favourite restaurants, and update any missing/outdated info.
Simply sign up and click the "Edit" button on their website: https://www.openstreetmap.org
In the area where I live, OSM is A LOT better than Google Maps, and I'll do my part of the job to make it gets even better.
There is also a fun Android app for editing maps as you travel: https://github.com/westnordost/StreetComplete#download
Server run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!