I guess look a coin with high volume and also if the price is increasing then that's a good coin to trade because it will be a quick profit but be careful always watch the price because once the coin is on top it will dump anytime.
Yes, the choice is very sensible. Sometimes the level of fluctuation is also very high. I very often see coins with high trading volume, besides that it can also get fast profits and sometimes it can also make your money run out quickly if you don't pay attention properly.
That is a safe choice and learning from that safe investment is good before taking higher risks. Having a token to trade can teach you a lot of things. It will hone your skills relating to speculating on which will be the next value. Trading tokens with high volume would also have a slow move in value which is also a good thing.