Terraform step templates for Azure deploys. Currently only AWS is supported in Octopus included step templates. It seems like an easy addition to the existing functionality
Azure accounts can now be selected when deploying Terraform templates. See the issue at https://github.com/OctopusDeploy/Issues/issues/5518 for more details.
At the moment you have to pass variables for the azure account credentials as cli params or tf file substituions - first class azure support (like AWS) would be much cleaner