another person reminded me about coffee
which is great
but i guess i didn’t consider it a smaller item but you can fit decent amounts of cans and bags in a relatively small footprint on shelves.
Coffee is on my shopping list as well. I have #10 cans of freeze dried stuff, but the bulk of my current storage is just normal canned goods. Also have a lot of peanut butter (cheap and dense). Think that lasts for a decent amount of time. It may not taste good after a year but would still be a dense source of proteins and calories. Prior to moving I did have a years worth of food, but had to chunk most of it. I miss those super pails.