I think it is so difficult to find an altcoin that can make a x100 or x1000, it is unreal, i have never seen a coin that makes that incredible pump. The only ones who can do it are the ico's on pre ico stages. Most ico's offer their coins at 0.02$ at first stages, and it can easily make x10 when it gets listed, but x100 is impossible.
Good luck with finding coins with that profitability.