Gaps in the snark pool- Required work that is not the snark pool yet. To monitor if block producing nodes have the required snark, if not can spin up snark workers (or request from peers #8489)
Average snark fee, average transaction fee- The average snark fee in the pool being greater than the average transaction fees may cause transactions to not be included in a block?
Any new alerts/metrics that'll help monitoring the health of the network