Finding list articles is as easy as 1..3 with this simple Google search parameter. It searches for any number within a numerical field, so you can find good roundups and comparison articles.
A lot of people look down on list-based articles, but oftentimes they're great places to start research on a certain subject you don't know much about (take our Hive Five or our top tens, for example). To find a list article on Google, you could always search for "top ten [something]" or "5 best [things]," but if you don't remember the number—or just don't want to limit yourself—you can use "X..X" (no quotes) to search for a range of numbers, as in the image above. This will bring up tons of list-based articles on your given subject, no matter what the number of items on the list may be. Check out the source link for more tips on how to refine your Google-fu.