I have three choices every time I mine and they are zcash, eth and siacoin. They are fun when the charts are green but it was a bit disappointing when the charts are starting to be bloody. And there are times that the whole week is bloody and that makes me feel uncomfortable and wants to sell my rig but I didn't stopped there.
The million dollar questions: is it still worth doing? Is it too late to start?
It is still worth of mining those coins but just don't mine bitcoin now it's not worth it for me anymore. Difficulty is higher and there's a lot of miners already. Unlike with these coins you can just shift from time to time and it's not that late to start mining alt coins. It's almost the same as trading sometimes it's good, sometimes it's disappointing.