Is there a way to find Helm created resource other than this?

wordpress.getResourceProperty("v1/Service", "wpdev-wordpress", "status");

This approach doesn't work when some charts like kube-prometheus truncates the long resource names. For example chart creates two different service names based on pulumi resource name.

new k8s.helm.v3.Chart(
      `kube-prometheus-example`,
      ...
)

new k8s.helm.v3.Chart(
      `kube-prometheus-example1`,
      ...
)

generates following Services..

kube-prometheus-example-kube-alertmanager
kube-prometheus-example1-kub-alertmanager

In such cases I cannot lookup the service its created..

have you tried

.getResource('v1/ServiceList', name)

maybe?