Ones I've invested in and believe are definitely worthwhile:
Ethereum
Litecoin
IOTA
TRON
Ripple
Stellar
Siacoin
Substratum
NewYorkCoin
LiteDoge
Kin
With $1000, I'd diversify. Find coins with strong technology and platforms, and a real use case. If they are under a cent, or even fifty cents, you can get thousands of them.
You must be really happy about those top 5 right about now. Good choices.