Top 20 NuGet ORM Packages

EF+ Full Version | C# Entity Framework Utilities (Bulk Operations | Batch Delete | Batch Update | Query Cache | Query Filter | Query Future | Query Include | Audit)
Entity Framework: Bulk Insert, BulkSaveChanges, Bulk Update, Bulk Delete, Bulk Merge, and Bulk Synchronize. Support: SQL Server, SQL Azure, SQL Compact, Oracle, MySQL, SQLite, and PostgreSQL. This library is NOT FREE. Trial period always stops at the end of the month.
LINQ to PostgreSQL is a data access technology that provides a run-time infrastructure for managing relational data as objects.
A simple and sane data generator for populating objects that supports different locales. A delightful port of the famed faker.js and inspired by FluentValidation. Use Bogus to create UIs with fake data or seed databases. Get started by using Faker class or a DataSet directly.
EF+ Full Version | C# Entity Framework Utilities (Bulk Operations | Batch Delete | Batch Update | Query Cache | Query Filter | Query Future | Query Include | Audit)
SQLite-Net Extensions is a very simple ORM that provides cascade operations, one-to-one, one-to-many, many-to-one, many-to-many, inverse and text-blobbed relationships on top of the sqlite-net library.
A lightweight, fast, convenient micro-ORM that allows you to get objects in and out of your database with the most control and least overhead.
PetaPoco is a tiny, single file .NET data access layer inspired by Massive that works with both non-dynamic POCO objects and dynamics. This package includes the just the core PetaPoco library (ie: no T4 templates)
MySQL provider for Entity Framework Core
NHibernate is a mature, open source object-relational mapper for the .NET framework. It is actively developed, fully featured and used in thousands of successful projects.
Testing helpers for using NSubstitute with EntityFramework.
MySQL provider for Entity Framework Core
Entity Framework: Bulk Insert, BulkSaveChanges, Bulk Update, Bulk Delete, Bulk Merge, and Bulk Synchronize. Support: SQL Server, SQL Azure, PostgreSQL Coming soon: SQL Compact, Oracle, MySQL, and SQLite This library is NOT FREE. Trial period always stops at the end of the month.
Second Level Cache for Entity Framework 6.1 and newer.
Design-time Entity Framework Core Functionality for MySQL Server.
A high performance Micro-ORM supporting SQL Server, MySQL, Sqlite, SqlCE, Firebird etc..
LINQ to DB is a data access technology that provides a run-time infrastructure for managing relational data as objects.
Entity Framework Core Second Level Caching Library.
Simple CRUD operations for Dapper.
Fluent, XML-less, compile safe, automated, convention-based mappings for NHibernate.