It depends on your goals. For multi-cloud provisioning, Terraform is the industry standard, though Pulumi is excellent if your team prefers using standard programming languages. For pure configuration management, Ansible’s agentless YAML approach is a favorite, though Chef, Puppet, and the Python-based SaltStack are powerful alternatives. We can also implement Crossplane, an open-source Kubernetes add-on that turns your cluster into a universal control plane, or tools like Google Cloud Deployment Manager, the native IaC service for creating, configuring, and managing Google Cloud resources, for single-cloud setups. Finally, we use Spacelift to add governance and policy layers on top of these tools.