I often get profits at the end of the year, in some altcoins that I invest are the first ignis, Ethereum and NXT, the three coins have their own advantages or movements, my advice you should have as soon as possible because of the three coins in a few months / or end this year the value will rise.
Regarding ethereum, I can not say anything, because I really got a good profit thanks to the investments of ETH, because I bought coins at the end of 2018, when the price fell to 78 dollars. But in relation to other altcoins, there are no real predictions that could be true.