k3s and microk8s definitely support multiple node setup. I'm not sure about kind or minikube (Maybe? You'd have to look into the docs). How ready they are an

k3s and microk8s definitely support multiple node setup. I'm not sure about kind or minikube (Maybe? You'd have to look into the docs). How ready they are and how well they'll scale out will depend a lot on how the controllers are setup. k3s, at least, supports multiple controller nodes on setup. Where things really get squirrelly, at least with k3s, is storage and ingresses. k3s supports both but in a super robust fashion.