What you mean by insane profit? Can you specify how much profit it is? Not all can suggest a sure project to you that will be highly valuated in the future. But you can always pick those top coin in the market like ethereum, ripple, neo, litecoin and those that are listed on the top 10. If you want while holding it for a long time you can pick those projects that are into staking so you can earn while holding those coin/tokens. Better bag some ethereum coin while their PoS is not yet active Im sure this will become big or possibly will pump few years from now.