I have been using these for my weekly meal prep, great for prepared meals: Glass 36oz

I also have these, that I use for soups, broths, chili, sauces, and diced veggies for the fridge and freezer: Plastic 8oz, Plastic 16oz, and Plastic 24oz. For these, I don't use them in the microwave, and that makes them easier to keep clean and free from food stains.