Throwing an oppnent is not covered in the PHB 5e. (or i did not find it). Even the "frenzied throw" of the Berserker is a larian thing.
But Grappling is. To grab an opponent you do an opposing STR check (+modifiers). If you succeed you can drag them around. I am fully fine with beeing able to throw them, but the grapple check should still be needed.
