It is a good thing that you did your own research, and you somehow have an idea on where you would want to invest. Those altcoins maybe promising, but I don't think they possess so much movement right now compared to other altcoins that may better suit your objective of investing short term. For example, LTC and Ripple are two coins that have been gaining so much attention around the market. Their developers have spread word that they are planning to pump and increase the market cap of those coins, which would amount to an increase in value in the coming months.