Save investments are beside Ether and LTC of course:

1. Waves
2. Stratis
3. OmiseGo
4. Lisk

be careful with Ripple as there might be a dump if the developer decide to create more coins (centrailized coin can just be risky).

Otherwise look for most of the cheap coins under 1$ which will actually all get pumped, because the Altcoin-Hype atm brings many newcomers investing into them, bc they just want to get rich and 100% profit is not enough for the most people anymore.

No Idea about Verge, but could be the next pump in the next weeks.