What load balancers are there for KVM

Question

Virtualization

Tell me the solution for the automatic distribution of VMs among the cluster nodes, depending on the load of the node. Hypervisor - KVM.
I found only a solution from a third-party vendor, but there is no real description and price list.

Answer 1

There are no standard solutions, everyone writes their own or torture monsters like open-stack and the like.

Answer 2

Has anyone worked with RHEVS (Red Hat Enterprise Virtualizaton for Server)? I came across on an English-language forum, on the official website there is really no information on how the balancer works with kvm or the like