Top 20 NuGet bottom-bar Packages

Xamarin.Android Binding for Simform Solutions' SSCustomBottomNavigation, an animated TabBar with native control
Xamarin.Android Binding for Alexander Dadukin's ExpandableBottomBar. A new way to implement navigation in your Android App
Yet another material bottom bar library for Android
Xamarin.Android Binding for Felix Soares' AnimatedBottomBar, a library that allows you to show bottom navigation quickly, simply and animated.
Xamarin.Android Binding for Dimezis' BottomNavigationBar, a Simple Bottom Navigation Bar for Android
Xamarin.Android Binding for Roughike's BottomBar. Android view component that mimics the new Material Design Bottom Navigation pattern
Xamarin.Android Binding for KaDahlin's AnimatedNavBar, an animated version of a bottom navigational bar that follows material design guidelines. Icons / colors are customizable to fit your app's specific theme. AnimatedVectorDrawable's are supported for animating the selected icon.
Beautiful BottomBar for Android