Group your resources to manage them as a single unit instead of individually. You can create resource groups that consist of all of the resources that are part of an Amazon CloudFormation stack. You can also create a group of all resources that are tagged with specific keys and values.
Use Amazon Resource Access Manager (Amazon RAM) to share resources you create in one Amazon Web Services account with other accounts. If your account is part of an organization, then you can share your resources with all of the accounts in the organization, or with specific organizational units (OUs). Some resource types let you share with individual Amazon Identity and Access Management (IAM) users and roles.
Attach string key and value pairs to your resources to categorize
them for a variety of purposes, including cost allocation and security by using attribute-based access control