MetalLB is the best baremetal LB (for k8s) but far from perfect indeed. For the IP conflicts, there are other private IPv4 range that you can use, just pick som

MetalLB is the best baremetal LB (for k8s) but far from perfect indeed. For the IP conflicts, there are other private IPv4 range that you can use, just pick something in the CGNAT range (100.64.0.0/10) or in 198.18.0.0/15 ("Used for benchmark testing of inter-network communications between two separate subnets")