In my point of view, I often invest some coin in the long-term where my account can be increased through time life. Some coins in my porfolio are $TNC, $NEO, $ETH, $GOT, $HOT, $ADA, $XLM
Hope you can have references
For me ETH, NEO and TNC are coins that are worth to watch now and invest, they will be the first to follow trend in my opinion and we could earn some profits even in this year.