Microsoft Azure Advisor is a super useful tool to help administrators obtain pertinent recommendations for improvement of services. It is used in order to work towards obtaining best practices. Azure will occasionally prompt administrators upon log in, but to get to it manually, simply type in “advisor” on the home screen search.
The categories focus on cost, security, reliability (aka, high availability), operational excellence, and performance. In a perfect world, we would always see all these wonderful green check marks, as below. Admittedly my ever-changing Azure account is currently limited, so the green was easy in this case. It is normally not unusual to see low, medium and high level recommendations, with descriptions of their impact on services.