Participating in bounty campaigns as well as trading on the market can bring good profits to the players of the cryptocurrency market in 2019.
It seems to me another promising area is investing in the long term in promising coins.
2019 will be the year of stock tokens. Already each exchange considers its duty to issue its own token.
As the improvement of IEO their price will increase
Not every exchange token can make good investment and some exchanges cannot be trusted with IEO.
This year already has started profiting those that were able to buy the dip of present growing coins.