Kubernetes is an open source system for automatic deployment, extension and management of “containerized applications”, while K9S provides a terminal for easy operation of the K8S cluster, which has a 10.8K Star on Github
Like looking at logs
Lens is also a terminal tool that allows us to control the cluster better. It also has 12.6K Star on Github
Lens is more convenient and intuitive to use than K9S, whether viewing Deployment, Service, Pod. It also has direct access to work Nodes, which is extremely convenient.
So I recommend Lens.