What should a company use to organize and manage Azure resources (such as VMs and storage accounts) for a specific project?

Azure Resource Groups are logical containers that hold related resources for an Azure solution. They allow you to manage, monitor, and deploy resources as a single unit, which is ideal for organizing resources by project, application, or environment. For example, all VMs, storage accounts, and virtual networks for a specific project can reside in one resource group. Azure Tags are used for categorizing resources with metadata, not for organizing them into deployable units. Azure Management Groups are used to manage access, policy, and compliance for multiple subscriptions, providing a level of organization above resource groups. Azure Subscriptions provide a billing boundary and a limit for resource deployment, but they don't directly organize resources within a project like resource groups do.