Buy neo, eos, icon, wan, tron, ether and look for the top icos each month and invest a little bit in those as well, by using ICO Discovery spreadsheets like this one: https://docs.google.com/spreadsheets/d/1Ja83ZCDDOgNXNYatD5w-2grA8IENuSwGjtSHWOG247E

Keep the aformentioned projects for at least 2 years and the ico projects for about 4-6 months depending on their performance, partnerships and potential and you likely will be in a very good spot a few years down the line. Just a sidenote: 20.000 invested in the top 5 projects last year, would be over half a million dollar this year. Don't understimate this market.