Top 20 NuGet button Packages

MultiFontView library can be used to select custom fonts for the view dynamically in your XML. The library loads the custom fonts using a font cache.
Animated Pencil Action view for Android.
Another floating action button menu with expand/collapse behavior. Demo available on https://github.com/rofiqsetiawan/OneMoreFabMenuDemo
Like Button is a library that allows you to create a button with animation effects similar to Twitter's heart when you like something.
A menu of FloatingActionButton items, designed to be anchored on an AppBarLayout
BadgeButton custom control for Xamarin.Forms
A simple Android's Floating Action Button that shows an anchored Navigation View and was inspired by Menu Material Fixed created by Tommaso Poletti
A couple of user controls like a Switch Button, Sliding Labels, Progress Bar, Progress Control, Feedback control instead of that scary message box to modenize your windows forms UI
OneMoreFabMenu Another floating action button menu with expand/collapse behavior.
ImageButton for Xamarin Forms.
An android library that brings the floating action button expandable
Android button to substitute the ProgressDialog
A Xamarin.Forms animated button, in the style of the YouTube Play button. Supports Play/Paused or Play/Stopped modes. When clicked it morphs from one state to the next. Allows a bit of customization too.
Blazor Components used at webenology
Turning you ASP.Net Hyperlinks into images buttons using CSS and jQuery