Top 20 NuGet orm Packages

FORK - https://github.com/tmsmith/Dapper-Extensions. A small library that complements Dapper by adding basic CRUD operations (Get, Insert, Update, Delete) for your POCOs. For more advanced querying scenarios, Dapper Extensions provides a predicate system.
an orm desgined to map classes directly into a database, including support for creating views and executing a modified sql language that uses the class objects and translates them into a proper query.
ORM lib for oracle & .NET
Provider-agnostic ADO.NET helper utilities
AutoContext.EntityFrameworkCore is a lightweight extension of Entity Framework Core for entity to entity configuration mapping.
Lightweight wrapper around NpgsqlConnection object to facilitate simple PostgreSQL execution and data retrieval in .NET Core. This is not ORM! It is much better. If you you want to use sane data access, use this.
Fast and extendible C# 8 alternative to Dapper data access built for .NET Core 3 era.
NHibernate List, Bag and Set that implement IBindingList, INotifyCollectionChanged or both
Roscoe is a strongly-typed fluent interface for Postgres
Generic ADO.NET helper library to connect to a relational database system using a given providers ADO.NET driver. Driver can be in Global Assembly Cache or referenced as a nuget package.
Adds support for reprocessable operations for DataObjects.Net Core-powered projects
A simple object mapping library. A simple extenstion for IDbConnection and IDbTransaction.
Write database queries in C# and syntax as close to real SQL as possible.
A thin wrapper around Dapper.Net that helps with runtime customization of queries.
EntitySpaces in .NET Standard Mode for SQLite (single assembly install)
EntitySpaces in .NET Standard Mode for MySQL (single assembly install)
EntitySpaces in .NET Standard Mode for PostgreSQL (single assembly install)
Easily deal with modal files and RethinkDB using a simple API inspired by RedBeanPHP.
FreeSql 扩展包实现,使用 FluentApi 方式配置实体模型,使用习惯接近 EFCore,方便过渡.