Yesterday, at Microsoft Ignite, there was an announcement about a new learning website from Microsoft, called Microsoft Learn. The best place to start learning Microsoft technologies.
With more then 80 hours of learning content in Azure, Power BI and Dynamics, you will also find experiences that will help you to get ready for new certification exams.
The content is organized by a learning path, which you will give and end-to-end view of a technology area.
These learning paths consist of step-by-step tutorials that provide free fixed-time access to Azure resources.
Microsoft Learn will be added with new products, roles, learning paths and features. So you need to check the website regularly for new learning paths or updated learning paths.
And this is all free! Go to https://docs.microsoft.com/en-us/learn/ and start with your learning path.