Top 20 NuGet ORM Packages

Entity framework implementation of EASE database framework
An OracleManagedDataClientDriver for NHibernate that will track the response times and success rates of your queries as dependencies using Application Insights Telemetry Client
A tiny helper-wrapper for ORM-style usage of NI.Data.DataRowDalcMapper
Fluent, XML-less, compile safe, automated, convention-based mappings for NHibernateX.
Lightweight CSV Serializer/Deserializer for use with Tortuga Chain.
Cache provider for NHibernateX using ASP.NET Cache object.
Cache provider for NHibernateX using ASP.NET Cache object.
KoduStore makes marries objects and LevelDB UWP in a delightful way. It's a really basic document store with support for primary and secondary index support; this will solve most of your problems. Right now it's a PCL (for UWP).
The package contains the latest ObjectMapper .NET compilation.
Design-time Entity Framework Core Functionality for SQL Server Compact 3.5 SP2 data store
NHibernate solutions for .Net framework
Provides WITH CUBE emulation for entity framework.
The MySql provider of the APQuery.net.
Helper around Dapper that supports strong typed mapping from data objects to business objects on the fly
Main DataOnion implementation, including AmbientDbContext, UnitOfWork, Repositories, DataInitialisers etc.
青客.Net Repository.EF
Entity Framework Core Extensions (EFCE) provides extension methods to help build entities through Entity Framework Core.
Latest Oracle ManagedDataAccess driver for NHibernate
XlsToEf is a library you can use to help you import rows from excel files into your entities and then save right to the database with Entity Framework. It includes components to take care of most of the mechanical work of an import, and also includes several helper functions that you can use in your...
Squirm is an experimental library that generates and executes SQL queries for SQL Server using a fluent syntax.