Sort:  

Hopefully someone more knowledgeable will chime in to answer your question, but I'll tell you my impression so far. I am still seeing people recommending mining Steem, but HOdlcoin and Gridcoin are the ones I most often see recommended. When Zcash launches, that may be a good one too.

I'm trying to mine Steem, but not having success. I was thinking mybay Monero would be better for mining, but I really don't know.

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.