Instead of "investing' holding a coin why not trade daily, because when you hold a coin for a long time specially the ones that are not in top 20 you will suffer losses. There are already too many new coins listed that you can buy. After the new coin is on the crypto market see the trade volume and behaving the team behind it aso..., and buy if it looks at least a bit promising. I am currently having my eye on couple of them, but it takes time.