With recent kubectl/kubernetes you can port-forward the services directly without specifying pods like:
kubectl -n istio-system port-forward svc/kiali 20001:20001
There is one more way to do it assuming you are using Istio and have istioctl (Istio) installed: `istioctl dashboard grafana`.
There is one more way to do it assuming you are using Istio and have istioctl (Istio) installed: `istioctl dashboard grafana`.