I recommend dividing chests into broad categories and then once you have a full chest you can divide them further.
Minecraft chest room outside.
Chests can now be put on donkeys and mules.
Chests can now be used in conjunction with hoppers.
For example keep a chest of wools but once it s full you can have a chest for each wool color.
Chests are now found in nether fortresses.
Chests can now have a nbt tag added enabling a.
Chests can now be used to craft a hopper and a trapped chest.
You can also as of java edition 1 13 sneak and place chests right next to each other.
If you are tight on space you can embed some chests into the floor or make chest shelves.
Build a large room for all your chests.
Note that it is possible to stack chests directly on top of one another.
Chests no longer generate naturally in mineshafts.
This also works on the latest bedrock edition.