I only buy eth and monero, nothing else. Most money that I have is invested into bitcoin as mother coin and until now giving me profit. To choose the right coin to invest I only suggest you see their price action history and volume, news not included. As long that coin has significant moving and stable volume, I'll replace my money with martiangle strategy as my money management. You can prepare loss with your stop loss, never forget that and disciplines with your rules. My income is my secret, but I always learn to understand real market and never push myself to win. Happy trading.