Microsoft Learn is the place you can receive free online learning for Microsoft products and services. I’ve been studying for the Azure Administrator Associate certification and it’s been a bit of a challenge lately trying to get to page which has the Exam overview on it.
Microsoft Certifications is part of Microsoft Learning so for people who want to know more about what’s changing to Microsoft Certifications and when it will be changing, you can visit the FAQ page to find out more.
This page has all of the Microsoft Azure certification exams listed if you wanted see what’s out there. https://www.microsoft.com/en-us/learning/azure-exams.aspx