We notice that a variety of online articles appear to have received permission from Wizards of the Coast for use of their images from the Monster Manual (such as this Nerdarchy article which uses a Bone Naga image and cites it “courtesy of Wizards of the Coast.”).
We would like to do the same for an article or a published adventure, but don't know who to contact at Wizards.
Often there are one or two people in companies who are responsible for these types of permission or a particular department which one contacts.
How does one receive permission from WotC for use of an image from the Monster Manual for an online article or published adventure?
We are looking for an answer that worked in actual “gameplay” (i.e. actually tried and successful in real life) rather than the general approaches used to gain permission.