You can try to find low market cap coins with really good features i can suggest one DeepOnion which has good features like DeepVault and DeepSend is coming very soon and maybe DeepTorrent so its a good one.
This must be the coin your are talking about -
https://coinmarketcap.com/currencies/deeponion/Good coin, it has some good pump last 2017 but don't know if it can recover again, lots of good coins in the market competing now.
As this coin got hype, I'm not sure if it can still gain the trust of investors.