There are usually calculators on the pools to work out returns for hash rate. 60H/s would get you about 7p a day for either Monero or Electronuem. I'd be inclined to do the latter since at least you'd get whole coins (1.5 a day at 5p each), whereas with Monero you're about 0.1 a year.
etn.spacepools.org is good for Electroneum - low fees and a payout at 10 ETN so you'd probably get a payout every 2-3 days if you had all four machines running.
ETN calculator
Monero calculator