Top 20 NuGet builder Packages

Dapper Builder support for Autofac
A builder/fluent interface to create a equality-tester for an arbitrary type. An equality tester functions as an IEqualityComparer<T> but additionally provides more information about why objects are not equal (when they are not).
Package Description
A universal PredicateBuilder
XCommon
Dynamic Linq Query Builder base on Expressions for ASP.NET MVC. Excellent PrepareQuery method with QueryParams (Razor engine)
A C# Server side component for the popuplar jQuery datatables plugin http://datatables.net/
A simple library for building C# code from functions
Micro library to help with building sets of file/directory paths
Build claims for authenticated user and construct a user object from claims.
Implementation of the fluent ribbon buider for Excel Add-in. We recommend to add the AddinX.Ribbon.ExcelDna package to use the fluent ribbon with Excel-DNA.
Caelan Framework for class building
OracleSqlBuilder is a data-access API for Oracle.
Entity Framework Core Extensions (EFCE) provides extension methods to help build entities through Entity Framework Core.
.NET Sql Builder and Generator
Connect BotBuilder projects without the need to go through the MS bot development portal
A Simple Object Builder for creating Test Objects.
Build validators for forms (IFormCollection) and queries (IQueryCollection) using a simple fluent interface
Core components for utilizing the builder pattern in test object construction.