LOL.. you want to start day trading and you don't even know which coins are suitable for the purpose. My quick advice for you - stay away from day trading and it will spare you from heartache later. If you don't have a deep understanding of various coins, then it is impossible to gain profit from day trading. Because unlike the case with investing, in trading when you get a profit, someone else is suffering a loss on the other side. You doesn't sound like someone with a lot of experience with cryptocurrencies. First get some experience, before jumping into day trading.