I always see iron chest, but I think https://www.curseforge.com/minecraft/mc-mods/expanded-storage-forge is superior, since it allow to have chests in vertical, and combine, while retaining the idea of upgrades and have bigger chests.

Another good mod that I didn't see was Inventory tweaks renewed (https://www.curseforge.com/minecraft/mc-mods/inventory-tweaks-renewed), which has 2 features that I like. The sorting with middle click is better than the one from Quark, and when a tool breaks it will replace it with one you have in the inventory, and same with a stack of carrots or other things.