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.
To find a list article on Google, you could always search for "top 10 [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 lots 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.
5 Unconventional Google Search Tips for Power Searching [Dumb Little Man]