dear friend as my experience monero is best currency to mine it is very popular among coin miners
it need few lakhs for startup cost and you are not counting electricity bills.
magicoin costs around 0.00004 BTC 1/500 tmes of monero at this time but in december january 2017-18 it was around 0.00012 BTC and it is budget friendly. And my rigs are super economical:
https://plus.google.com/103411401853001823220no electricity bill no tax just start making cpu coins in 2 hours time