The New Year is usually a good time to try to refresh a portfolio and buy stocks worth holding for the long run. I think MSC Industrial (MSM -0.84%), Freeport-McMoRan (FCX -0.56%), and On Semiconductor (ON -1.10%) are three names worth looking at closely. They are all companies with excellent megatrends behind them and look set for long-term growth.MSC Industrial for the U.S. industrial renaissanceSignificant events often change how companies think about running their businesses. In this case, the COVID-19 ...