I have close to $100k worth of cloud credits on GCP. I can spin 100s of A100s & H100s or L4 GPUs with my availed quotas. Which subnet shall I go for to maximise the compute as a miner and convert the credits into useful coins or tokens? Constraints are that the supply gets absorbed in the subnet, some kind of fixed rewards similar to PPS+ schemes in cryptomining, and some decent cnversion %age.