My IT department recommends a Dell Inspiron 14 5000 or a Dell Inspiron 2-in-1 7000. However, security and FOSS are very important to me. I want a laptop with some form of open firmware—such as coreboot—but I also strongly prefer AMD to Intel. I am a freshman going into college to study CS.
I agree with everyone else a few year old thinkpad with upgradable ram and storage would be good. I don’t know what your budget is but if you want an open source computer system76 makes preconfigured Linux computers. They are pricey but it’s another option.