Top 20 NuGet Xamarin Packages

Cross Platform Mobile Development

Xamarin Android Bindings for Google Map Utility Library.( Clustering etc. ) : https://www.javadoc.io/doc/com.google.maps.android/android-maps-utils/latest/index.html
Personal nuget
A Google's Mp4Parser library binding for Xamarin Android
A Xamarin Forms plugin to check if devices are rooted / jailbroken.
NAF Xamarin library.
In App Purchase Plugins
Appgain SDK for Xamarin Android
Plugin Description