So I've seen a couple of these posts before, Where people ask's for suggestions on which single altcoin to put X amount of money into, with the hopes of it making them millionaires. Thought i'd try doing the same thing, buuut seeing as I Don't really feel like putting all of my trust into one coin, I thought i'd Do it with 5 coins.
I wouldn't make it all with altcoins. You need to have some bitcoin in your pocket and USDT to gurantee yourself in the trading. Otherwise, it can be a nightmare with 100% altcoins.
ETC
Ripple
Ardor
Waves
TenX
This would be my selection.