$5k is not a little money. You should do your own research and don't be lazy.
But I'll give you some suggestions!

1. Binance Coin (BNB)
2. Ethereum (ETH)
3. Ethos (BQX)
4. Tron (TRX)
5. NEO

Personally I think these coins are the best for long investment.
But, I think it's really a bad idea to invest money based on someone's opinions. Just do your own research bro, it will be more worth it! well, you can see google also for more reference.