Top 20 NuGet repository Packages

Generic ADO.NET and Entity Framework Repository
Redis implementation of the RevStack c# repository pattern.
Entity Framework 6 Fluent Repository pattern
Reposify in-memory implementation for testing.
Reposify NHibernate implementation.
A concurrent data manager that gives IUnitOfWork repositories for each of your entities. Each one gives you One, All, Count, Exists, Add, Update, Delete with single or bulk
Persistence layer for sitecore using glass.mapper
Provides interface for basic CRUD database interop.
This package contains a NoSqlRepository for .net apps using json files.
C# Design Pattern class library
RevStackCore .net core OrientDb repository pattern.
Abstract repositories using Entity Framework.
Provides strong types and repository access for mongo DB and Azure Cosmos DB, which is both weak typed. You can have all the sources with examples from here: https://github.com/rammicz/MongoRepo
Implementation of SqlRepo for Microsoft SQL Server
Local file system implementation of the IO repository pattern abstraction
Memory repository for Simple token authentication library
The generic repository and unit of work pattern for entity framework