If you're looking for #privacy, the absolute best option is probably setting up your own #homeserver, but if you don't have the technical know how, the time, or the inclination, the next best thing is a #NAS!
These little things let you store files, photos, host websites, run containers, backup your computers, run office suites, all with simple GUIs, and can be cheaper than cloud storage.
Let's take a look at why you probably need a NAS at home: