A much more comprehensive list can be found here. This is likely a subset of the items in that repo and a few additions of tools i’ve tried out or want to try out to make my K8s life easier.
CLI Tools:
Helm Kubernetes package manager
K9s CLI management tool.
kube-shell integrated shell environment
Cluster Provisioning
kind Docker based kubernetes deployment.
minikube VM based cross-platform kubernetes with addons support
Automation and CI/CD
Development:
Testing/Troubleshooting
Backup/Restore
Service Mesh:
Certifications
killer Kubernetes Exam Simulator