Several outlets have published lists of top-rated cordless vacuums, with some including expert buying advice from a professional cleaner. The number of recommended vacuums varies, with some lists featuring 9 options and others featuring 10, and some outlets have tested specific brands such as Shark, Bissell, and Black + Decker. The lists appear to cater to different needs, including pet hair and shop vacuums, and some are limited to options under $200.