I’ve seen pics of people using binder clips to hang the frozen bags, beck, sometimes off the wire shelf in most freezers. Easy to label, and it’s almost like flipping through a file cabinet. A delicious file cabinet.
To the OP I have used jars (reusing salsa jars, mostly) to freeze soup. Nice thing is then I can microwave my lunch straight in the jar, once it’s thawed of course, which makes office meals a little simpler.