If you want to hold on for a long time, then I suggest you invest in several ICO projects, so long-term holding could have a surprising return. I recommend you to join these ICO.
wepower
Experty. IO
RSK
TraDove
are you can guarante and take responsibility if sometime ico campaign are you recomendation are failed and ended to scam??
for op if you want just hold your money to cryptocurrency just choose majot altcoin based on coinmarketcap and never participate in ico campaign if you don't understand anything about ico and their risk.