Top 20 NuGet extension Packages

MediatR extension for Microsoft.AspNetCore.Mvc. Wraps each configured MediatR request in a generic controller and provides numerous extension points.
VsixTesting allows you to easily test your Visual Studio Extensions.
String wildcard match (I can not believe no one already wrote a simple NuGet package to do this).
Morgan's CLR Advanced Runtime es un conjunto de funciones, extensiones y módulos que he encontrado útiles a lo largo de mis años de experiencia con lenguajes .Net, particularmente con Visual Basic. Trata de añadir características que no se encuentran fácilmente disponibles en .Net Framework, y ademá...
Simple but handful extensions
Adds extension methods and other useful things to make things easier.
An extension of the fluent validation with a set of Brazilian validations
DryIoc extension for ASP.NET MVC
Another Extension Methods package, but named after Babou and built in Fort Kickass from the tv show Archer.
Unity IoC parameterized instantiation extension inspired by Autofac
WildHare Extensions are a collection of useful extension methods in c#. One of the goals of the project is to convert methods to have a more "functional" feel with easy discoverablity from intellisense for a more natural code flow, chaining of code, and better discoverablity.
Quantify your coding with automatic time tracking and metrics about your programming.
Persistence extension for Navigator Framework bots, requires provider implementations.
MIME content type definitions mapped with file extensions and file signatures.
BizTalk Factory's SSO settings object model.
BizTalk.Factory's pipelines for general purpose BizTalk Server development.
Collection of extensions for .NET
Dapper extensions for ASP.NET Core
This AT.NetCore.Common library provides those kind of common functions/methods and it reduces 30% developers coding time.