Use a single subscription and resource group for all applications to simplify management.

Create separate subscriptions for different compliance requirements and use resource groups for application-specific isolation.

Ignore management groups and focus on individual resource optimization without considering the overall structure.

Use a flat structure with minimal management groups and rely heavily on tagging for resource utilization.

Implement a hierarchical structure with management groups at the top to enforce governance policies across subscriptions, and use separate subscriptions for different compliance requirements with resource groups for application-specific isolation.