Answer:
You could recommend Red Hat OpenShift, which is a comprehensive enterprise-grade platform for container orchestration, built on top of Kubernetes and designed for organizations that want to deploy, manage, and scale their applications. OpenShift provides a consistent and secure environment for deploying and managing containers, as well as a suite of integrated tools and services to support development and operations teams. Since the client is already using Microsoft Azure and standardizing on Kubernetes, Red Hat OpenShift would be a suitable solution to complement their existing infrastructure.