After long time to study crytopcurrency, I believe only BITCOIN, ETH and RIPPLE
I think they will be up more and more everyday.
I would cross ripple out. ETH and BTC are definitely the safest way and very probably most lucrative in crypto.
BTC and ETH are my top 2 and Ripple is in my top 5. There's a lot of interest in Ripple over the past months too. And it rose in value again after news of a presentation given to PBoC. Of course, what will materialize, we don't know yet.