Spring starters is part of a rich ecosystem where you can also find many additional Azure Spring offerings.
Let me share two examples here:
The Spring Boot Starter for Cosmos DB enables developers to use Spring Boot applications that easily integrate with Azure Cosmos DB by using different APIs.
The Azure Key Vault starter can conveniently access your Secrets like any externalized configuration, such as properties in files.
You could get more details for each of these projects at https://spring.io.