I got fed up with the wad-o-keys a few years ago. I use only SFIC commercial style locks. These are interchangeable cores with nothing more than a special key needed to change them. I have a bunch of rentals and I can literally rekey the deadbolt while people are still inside without even unlocking the door!
SFIC locks are available in almost any type you can think of - deadbolt, door knob, pad lock, cabinet lock, etc. It is typically commercial grade hardware, so better quality. And it isn't very expensive because of how common it is! It also is not brand specific, you can interchange Schlage, Master, and Medico if you wanted to. Most brands make an SFIC version of everything else they make.
The cores are easily keyed alike, or various levels of master keys. They come from whichever brand is your favorite, and, you can get anything from a cheap 5 pin to a high security 7 pin with numerous other security features. They use these in banks and pharmacies. You can often buy a lot of matching cores already to go on ebay from some commercial place changing out their locks. Or there are lots of people who will custom pin them however you like.
Nothing is more interchangeable/universal than SFIC, few things are more secure. And it's cheap!! I can get into 12 different houses with a single key, but they cannot get into each other's house!