From
https://news.ycombinator.com/ I was turned on to Equinix from which bare metal boxes are offered. I found they have better hardware for this purpose at less than half the cost. The boxes come with Mellanox ConnectX-4 Lx NICs superior to AWS ENA NICs in capability and performance. You can reserve two perfectly good machines for a buck an hour. You're billed by the hour and return them to Equinix at will.
I prepared this instruction set: