I would suggest you Cardano for real and guaranteed profit.They will release smart contracts in the next few months and are already moving ETH users across to the Cardano blockchain. A true rival to ETH and aren't pulling any punches. This will prove to be a good contract.
That's right, because if ETH can't fix the problem of transaction fees on their platform, then everyone will obviously run into Cardano, especially this year Cardano's price movement has reached double the previous price.