I just found out about this site and am already intrigued.
Labelwatch.com lets you pick specific foods by category and lists their ingredients, with "beneficial ingredients" listed in green, "OK ingredients" listed in yellow and "cautionary ingredients" in red. The items in each subgroup are listed from, in my own words, least UFIs to most UFIs.
You can click on any ingredient and read more about it. As an unrepentant label-reader, I could easily spend way too much time of this site...