I would not yet bet on small and cheap coins of the crypto market. Because it is not very safe, respectively, is not very profitable, it is not interesting to me. I like a project like Zynecoin, I believe in it and follow it, I really hope that it will shoot.
For your information, XRP, EOS, TRON, Stellar, Cardano, IOTA, NEO, ETC, NEM was the cheap coins in the market and that coins get a better position than the other coins. So I think he can make a research about those coins and if he found that coin will give a big profit, then he can continue to buy that coins. I will not suggest buying new coins without making a research on the project because it's too risky for me to choose that coins as the investment.