terratag
Terratag is a CLI tool that enables users of Terraform to automatically create and maintain tags across their entire set of AWS, Azure, and GCP resources.
Terraform › Tools: “Terratag is a CLI tool that enables users of Terraform to automatically create and maintain tags across their entire set of AWS, Azure, and GCP resources.”
OpenTofu › Tools > Helpers: “CLI tool allowing for tags or labels to be applied across an entire set of OpenTofu/Terraform files.”