Mine crap coins,  and wait for a pump and sell  . That's the most profitable approach if your good at trading and can wait long enough for the pump. Look at signatium. Or mine a decent mid tier slow moving giant coin like decred/zcash/monero if you got the hash power,  . Mining what everyone else is mining is a poor strategy, you'll never be able to mine enough coins to cover your investment cost in a reasonable amount of time.