overlapping marker spiderfier with google-map-react · Issue #627 · google- map-react/google-map-react · GitHub
How to use a Overlapping Marker Spiderfier for Google Maps API v3 · Issue #1076 · sebholstein/angular-google-maps · GitHub
GitHub - jawj/OverlappingMarkerSpiderfier: Deals with overlapping markers in Google Maps JS API v3, Google Earth-style
![javascript - OverlappingMarkerSpiderfier show which markers are in a 'spiderfy cluster'? - Stack Overflow javascript - OverlappingMarkerSpiderfier show which markers are in a 'spiderfy cluster'? - Stack Overflow](https://i.stack.imgur.com/tGt5U.png)