Don't just depend on recommendation and jump into it. Make sure to do your own research on the coins recommended. For my personal choice I like Ripple (XRP), Cardano (ADA) and TRON (TRX). They have use cases, lots of development and partnership plus the prices are cheap.
You are right. We must do an independent analysis to determine the right timing in market movements to get the best price and time effectiveness. In addition, XLM and waves are also potential.