Adam Marczak - Azure for Everyone
Hands-on Microsoft Azure tutorials and the AZ-900 certification series.
Azure content - seems mostly historical now.
Practical, hands-on Microsoft Azure content for developers, architects, and IT pros — best known for a complete AZ-900 certification study series (service lifecycle, SLAs, cost management, and so on). The YouTube uploads do look historical: the video page shows the AZ-900 series as the most recent content, several years old. Marczak has largely shifted to LinkedIn and conference work, but the archive is a solid Azure fundamentals course.