Azure Data Factory

Here is the free Azure Data Factory training (the Coursera, LinkedIn Learning and Udemy also have good resources).
Data integration at scale Azure Data Factory - Learn | Microsoft Docs
Learning and Development Services (microsoft.com)
Tutorials, documentation and quickstarts:
Azure Data Factory Documentation - Azure Data Factory | Microsoft Docs
DP-203 is the certification that covers Azure Data Factory:
Microsoft Certified: Azure Data Engineer Associate - Learn | Microsoft Docs
There are a lot of good videos on YouTube to get up to speed with ADF. I like this introductory video from Adam:
Azure Data Factory Tutorial | Introduction to ETL in Azure - YouTube
Azure Data factory pricing:
Pricing – Data Factory | Microsoft Azure