Which of these stocks has the best long term upside at today’s price?

Hi everyone. I am trying to understand the risk vs reward of a few stocks at current prices. If you had to choose one from this list for long term growth, which one would you pick and why? Stocks: •SLS (Sellas Life Sciences) •HGRAF •POET •ONDS If you think none of them are good opportunities, please say so and explain why. I am interested in fundamentals, future catalysts, and main risks. Thanks.