Load balancing kubernetes cluster on budget KVM provider?
It depends on how much time you can invest into configuration and your configuration.

I have built my own cluster on AWS using Nomad and Consul where Fabio was used as Application Load Balancing layer (AWS ALB was lacking for my purposes).

Alternatively if you use k8s and do not need additional ALB you can use DNS RR (multiple A or AAAA records for your domain) or create HAProxy cluster in front of your application.