I think one could argue back and forth the real value of consumer grade "surge" protectors.

Anyway I would look at a "smart" PDU for the other items you want. You can get them in several configs from metered, metered and switched, monitored etc, etc. Also a 15A circuit is cutting it awfully close running two miners, it also depends on the brand and model. S9s are like 6-7A each and the M3's are like 10A each. Remember you don't want to exceed 80% of the circuit capacity.