Zeitcoin, a proof of stake coin, with fast transfer times and promise of a high staking return of 25% in the fist year, 20% in the second year, and 5% each year after that makes it one of the highest return rates of all coins.
With a market cap just under $3 million dollars this coin has a lot of room to grow in value.
https://coinmarketcap.com/currencies/zeitcoin/
As altcoins grow in trading volume, coins like this one may gain traction in other exchanges helping add to the network effect.