Check Accelerator Network (ACC)
300% annual return for staking until Oct 2018. Afterwards still 100%.
It has currently really low market cap. But it is worth a try.
https://accelerator.network/Tell us more about the Coin.
How much is the max supply and are they listed on any exchanges?
Listing in on:
IDEX
Etherdelta & Forkdelta
CoinExchange
On top they have their own exchange - wich also shows the strenght, skills and ambition of the devs.
Target for this project is to build a "An Energy Efficient Mining Facility
In The USA Powered By Renewable Energy "
Later on they are also planning to go for AI projects
Until october you get a staking reward of 300% for profit or you can use your $ACC to mine ETH via the website.
The market cap is around 700,000 USD, making it a steal.
Community is growing with active dev and ~3000 members in telegram. Funds for a commercial video were raised within 12 hours.