Top 20 NuGet observable Packages

Provides extensions for testing ReactiveUI based applications
Contains the ReactiveUI platform specific extensions for Xamarin Forms
Contains the ReactiveUI platform specific extensions for Windows Presentation Foundation (WPF)
A MVVM framework that integrates with the Reactive Extensions for .NET to create elegant, testable User Interfaces that run on any mobile or desktop platform. This is the base package with the base platform implementations
Dependency free reactive abstraction around Process, exposes handy static methods for the quick one-liners
Bring the power of Rx to collections using Dynamic Data. Dynamic Data is a comprehensive caching and data manipulation solution which introduces domain centric observable collections. Linq extensions enable dynamic filtering, sorting, grouping, transforms, binding, pagination, data virtualisat...
Fody extension to generate RaisePropertyChange notifications for properties and ObservableAsPropertyHelper properties.
Provides ReactiveUI extensions for the Android Support Library
Reactive Extensions for JavaScript libraries.
Collection of MVVM Helpers such as ObservableRangeCollection, BaseViewModel, Grouping, and others.
Package Description
Provides Observable-based events API for WPF UI controls & event handlers
Provides Observable-based events API for Xamarin Native Platforms including Android, iOS, Mac, TVOS, Tizen, and UWP
Reactive Extensions for JavaScript library with aggregation event processing query operations.
Reactive Extensions for JavaScript library with reactive coincidence join event processing query operations.
Reactive Extensions for JavaScript library with join patterns event processing query operations.
Reactive Extensions for JavaScript test library, used to write unit tests for complex event processing queries.
Reactive Extensions for JavaScript library with experimental operators.
Reactive Extensions (Rx) for .NET
Reactive Extensions (Rx) provides the aliases Map, FlatMap, and Filter