the safest choice for the moment is to buy and hold bitcoin
There are many ways to make money with cryptocurrencies, but for me the best way to earn or to make money is by joining bounty campaign and you can choose whete to join, you can join signature campaign and twitter campaign to make money and you can also earn by doing trading in this cryptoworld.
Well for me the best choose how I can make money with cyptocurrencies the best and safer is joining and work in signature champaign, because every week you can get bitcoin. Just to be sure you finish all the requirement of campaign manager so that you earn more bitcoin. After that I just keep hold and wait for the good value before I convert in to fiat.