There is no template for dashboard. You have great builtin dashboard in vmware tab. If you want custom one, you should focus on metrics that are most important for you. In general on metrics from vmware there is anomaly detection. In such case, dynatrace will rise problems for them if something will be violating.
@Puli R. Here at our company I sat down with the Vmware Ad asked what they wanted to see on their dashboard. From there I built one that shows each ESXi Cluster, along with memory, disk and cpu metrics as well as some custom charts.