We use a Ball jar. We reused it from some sort of food product (honey, maybe?) but you can buy them empty. I believe it's the 32oz. size https://www.ballmasonjars.com/products/jars/canning-jars/ball%C2%AE-mason-jars-lids%2C-regular-mouth/SAP_62000.html.
We use a plastic lid because the metal lids are janky.
A 12oz bag of coffee empties perfectly into it. It's clear so it's very easy to see how much you have left.