This would probably be my suggestion as well, but honestly there's no telling--nobody here has a crystal ball and can tell you which coin is going to make you a quick profit, or any profit at all. 

And OP, there are a million threads like this, asking what to buy.  Everyone is going to advise you to buy the coin that they're holding, and you can't really trust that kind of biased advice.  A lot of altcoins are down right now, so stick with the big-name ones that are trading at a *relatively* low price.  I've been buying NEO and PIVX, but I'm not suggesting you do the same--and PIVX isn't really one of the big players like ETH, LTC, and those kinds of coins.

If you can't decide, you can always stick with bitcoin.