Top 20 NuGet aspnet Packages

A library bringing output caching (similar to MVC's "OutputCache"), to Web API actions. Strathweb.CacheOutput will take care of server side caching and set the appropriate client side (response) headers for you.
ASP.NET Web API formatter for partial response (fields) JSON output.
Generates a C# proxy for communicating to a RESTful Web Api that implements the WebApiProxy provider
Container-per-request and other IoC goodness for ASP.NET MVC 5.1 using StructureMap.
Support for T4MVC with FluentBootstrap and ASP.NET MVC.
ASP.NET Core library for parsing OData query options.
AspNetCore.Security.CAS Class Library
Abp.Zero.AspNetCore
ASP.NET Core extensible and embeddable documentation engine
Provides classes for generating email using ASP.NET MVC Razor views.
AspNet Core Localization using SQL database for KEY-VALUE pair and share common storage for both SERVER and Client App. This repository, SQL Localization, inspired by Damien Bod's - https://damienbod.com/, AspNetCore Localization project.
Spring Cloud Config Server Configuration Provider Autofac
CloudFoundry Environment Variable Configuration Provider Autofac
Common library for NFinal MVC.
Utilitary middleware for ASP.NET Core applications, that will return the API metadata.
A .NET Standard library that allows registration of ExtendableEnums with Microsoft's OData in Asp.net core, so that only the Value propery is output for OData requests.
ASP.NET Core extensible and embeddable documentation engine
ASP.NET Core extensible and embeddable documentation engine
Oracle database provider for the SnapObjects ORM (SnapObjects.Data).
BlazorMobile: Launch Blazor as a mobile application on iOS, Android & UWP, with native communication support. Support iOS 12+, Android 4.4 >= and UWP. Install this package on your shared Xamarin.Forms app project.