After trying acetone and a couple other ones, I now use dawn dish soap with hot water. I put the bearing on the end of a paintbrush handle, scrub the soap in, spin it in the water until it feels like nothing is stuck in there, then dry. I use a Datavac to blow dry them but you could use compressed air, and I used to put them in a towel and spin them around to dry them with centrifugal force. Air dry works too, just don’t put them away or in a yoyo until they’re fully dry.
You can put a little bit of lube in but cleaning them this way usually leaves them fairly quiet. I mostly run dry bearings now.