These hot stocks are poised to crush the market over the long term.Stocks like Nvidia have gotten most of the attention over the past 18 months, but nothing goes up forever on Wall Street. Eventually, the stock's big move is over, and it's time to find the next big winner.These three Motley Fool contributors set out to do precisely that.Palantir Technologies (PLTR 1.95%), Affirm (AFRM 5.44%), and MercadoLibre (MELI -0.83%) emerged as top ideas. These companies have compelling growth potential yet are still ...