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Objectivity would dictate to mine what's most profitable then invest that profit into steem. www.Poolpicker.eu doesn't have all the pools but a fair selection of the most profitable pools to mine at. For searching out individual coins www.whattomine.com and coinwarz.com are sources for which coins are profitable. Coinwarz doesn't seem to keep up with adding newer coins as well as whattomine, just a heads up.