Of the 1,000 guidelines in the database, only about 300 have links to the current guidelines on the publication's site. There are a lot of links to current guidelines here. Make sure you are viewing the guidelines on the magazine's site and not a copy of the guidelines on someone else's site. Get a current editorial calendar. Not all publications use an editorial calendar, but when they do, mind reading becomes easy.
Magazines work months in advance.
Query for Christmas and Hanukkah related articles in June. Editorial calendars are quite often sent along with guidelines. Study and analyze the publication. Find four or five back issues of the publication. Go to the library.