The Deploy SharePoint with SQL Server AlwaysOn infographic from Microsoft provides a really good visual representation of how to design a SharePoint solution in Microsoft Azure. This infographic provides an example of using Infrastructure as a Service (IaaS) within Azure to setup a high-availability deployment of a SharePoint farm with SQL Server configured for AlwaysOn.
You can download the full infographic at the following URL:
https://build5nines.com/wp-content/uploads/2016/06/azureinfographic_sharepointsqlalwayson.png