investment in cryptocurrency is have a big risk, its so hard to choose best altcoin for short term investment but if you want invest I suggest you to invest in ETH because now the price of ETH drop until 60% and I think will grow up and stable in the end of this year
good luck
I also spend a lot of my assets to invest in ETH because I believe it will grow very well in the future and especially when the market recovers, ETH will grow extremely strong. The market is showing positive signs and that will help investors' beliefs become better.