I have been using a Dillon vibratory tumbler/cleaner, Walnut media along with their polishing fluid for 30+ years and has always worked for me. Since this method of cleaning brass is not very high tech, I would suspect that pretty much any reputable brand of equipment would work well. I will tell you that Dillon has the BEST customer service and no BS lifetime guarantee on their products, (not sure if it does cover electric motors though).

Chief38