Well if you really want to invest on cloud mining then ill recommend 2 sites which is genesis and hasflare this 2 sites is still operating but idont guarantee they would last long because i dont really have trust on this investments because ive been scammed previously on these kind of schemes thats why i dont try to put money again on this. Invest on your own risk.
That two mentioned are on scene for so long time ago but actually its still not advisable for new investors since the profit is to low that they can imagine and pretty sure that they will pissed off for the little comeback of their investments, thats the reason why i didn't try to look up for that kind if sites since i can really tell that they are on struggle since mining are not worth it business at this time.
one of the reasons why this type of sites are staying around for a long time is that they pay small amounts out (low profitability that you said yourself) it is a tactic they use to prolong their existence because every investor will be waiting forever for their ROI or in other words their initial investment back and then reach profit stage.