Node selectors are very common to set for RayCluster, especially since most providers use node selectors as a way to specify the GPU type.

kubectl ray create cluster my-cluster \
  --node-selector=cloud.google.com/gke-accelerator=nvidia-l4,cloud.google.com/gke-nodepool=my-node-pool

Common node selectors like cloud.google.com/gke-accelerator and cloud.google.com/gke-spot can surface as provider-specific flags.