Terragrunt is a thin wrapper for Terraform that provides extra tools for working with multiple Terraform modules.
A Terragrunt frontend that allow execution of Terragrunt/Terraform through Docker
Terratest is a Go library that makes it easier to write automated tests for your infrastructure code.
Generate Atlantis config for Terragrunt projects.
Manage terragrunt versions - the tgshift command line tool lets you switch between different versions of terragrunt
Para - community plugin manager and a "swiss army knife" for Terraform/Terragrunt - just 1 tool to facilitate all your workflows.