1050ti is best bang for buck atm. For the price of one 1060 you can get two 1050ti. You don`t, however, get the double hashrate on 1060. Not to mention 1070. What concerns me, though, is when the DAG will become too big for 4gb cards...
That shouldn't concern you. ETH will be PoS before DAG Buffer reaches 4GB, so mine while you can
And there is always Zcash, with the right overclock settings , my Gigabyte GTX 1050 ti reaches easily +1000 memory and +65 core, while lowering temperature limit to 72 degrees and does about 189 Sol/s per second.
So with the milosx data he should be able to pull 6.xx dollars in a day as the picture below shows for the actual moment with the settings I suggested.
Which miner software are you using to mine ZEC?