Top 20 NuGet ORM Packages

Entity Framework: BulkSaveChanges, BulkInsert, BulkUpdate, BulkDelete, and BulkMerge. Support: SQL Server, SQL Azure, SQL Compact, Oracle, MySQL, SQLite, and PostgreSQL. This library is NOT free. FREE Trial always available for the current month.
Session per request HttpModule for LiteFx.NHibernate.
An Oracle ODP.NET Managed Driver provider for Insight.Database so Insight.Database can do its magic on Oracle. Automatically installs Oracle ODP.NET Managed Driver. Depends on Insight.Database.
An Insight.Database provider for the Glimpse profiling framework so the two can play together nicely.
Lightweight multi-platform ORM for mobile, desktop and servers. Data providers for Sqlite, SQL Server, MySql and Postgres are available on Nuget.
LINQ to SqlCe is a data access technology that provides a run-time infrastructure for managing relational data as objects.
LINQ to Sybase ASE is a data access technology that provides a run-time infrastructure for managing relational data as objects.
LINQ to Firebird is a data access technology that provides a run-time infrastructure for managing relational data as objects.
LINQ to Oracle is a data access technology that provides a run-time infrastructure for managing relational data as objects.
LINQ to DB2 is a data access technology that provides a run-time infrastructure for managing relational data as objects.
LINQ to Informix is a data access technology that provides a run-time infrastructure for managing relational data as objects.
LINQ to SAP HANA is a data access technology that provides a run-time infrastructure for managing relational data as objects.
Flexberry ORM package.
AntData.Orm For Dotnet Core
LinqConnect is a fast, lightweight, and easy to use LINQ to SQL compatible ORM solution, supporting SQL Server, Oracle, MySQL, PostgreSQL, and SQLite. It allows you to use efficient and powerful data access for your .NET Framework, or .NET Core applications supporting Code-First, Model-First, Databa...
Inflatable is a simple ORM.
Package Description
Extension handlers for entity framework
.Net Core 2.0 SqlSugar ORM ,High-performance, lightweight https://github.com/sunkaixuan/SqlSugar
A simple object mapper for CosmosDB SQL API