A nice affordable, fairly quiet (be sure to install the muffler provided with it) and small (only 2.5cfm) compressor that I am very happy with is the
https://www.amazon.com/Rolair-JC10-Plus-Oil-Less-Compressor/dp/B0058NRVMOOnly 60dB
I have mine setup on a wire rack shelf (in a garage), so I may easily clean the floor with a garden hose and a mop. It is next to a MIG welder.
It is quiet enough that the vibration of the wire spool in the mig welder on the bobbin is louder then the compressor. The compressor just sounds kinda farty. The compressor has rubber feet but the wire shelf that it is on is fairly shitty so it flexes and vibrates.
I need to put some kind of tensioning in the welder to stop the wires from rattling around.
Perhaps I will put a plank of rubber coated wood under the compressor to see if I can isolate it from the welder (I think the vibration is traveling through very specific elements under the compressor feet, it might stop if its spread to all of them evenly.
Keep in mind the CFM is low, 2.5 is not enough for most tools other then a nailer or very quick uses. Of course if you want you can put a 60 gallon tank connected to it (granted you will probably wear out the little motor unless you obey the duty cycle restrictions) that takes forever to fill but will give you some usability for heavy tools, maybe 2 minutes on some air hog like a carbon arc gouge.
But, I can't stand the other compressors. I had a shitty husky before that sounded like someone was firing a belt fed machine gun 2 inches away from my ear. I hated that fucking thing I would literary wear ear muffs and plug it in with a extension cord and run away indoors when it turned on, come back when it turned off, turned it off, used until the pressure was low, and repeated. You could hear it clearly down the street.