Fluent API.

How to Configure Entity Relationships using Fluent Api in Entity Framework Core
This blogpost explains how you can configure One-To-One, One-to-Many, Many-To-Many entity relationships using Fluent API in Entity Framework Core.

Using Fluent API in Entity Framework Core Code First
In this blogpost explains how to configure entities using Fluent API of Entity Framework Core or EF6 above versions for the Code First approach.

Create Azure VM using C# Fluent SDK
This blog explains how to create an Azure Virtual Machine with a resource group, storage account, virtual network, network interface, etc. using C# Fluent SDK.