Hi Kristin, I'm sorry I missed this question! I had taken the weekend off and just ran across this comment this morning while working on the Challenge Wrap-up!
There is no one specific report that lists all profiles that do not have a cemetery category, but I do know a few tricks with WikiTree+ that can you get started for future challenges and have TONS of results!
In WikiTree+, use the NOT and CategoryWord= options to perform a search, such as:
buried NOT CategoryWord=Cemetery
This search will return around 6,041 profiles where the word buried is found (in the profile text or in a location field) but does not have a Cemetery Category attached to it.
Just keep in mind the results are not perfect, since some cemetery categories may not actually contain the word cemetery (i.e., Valley Memorial Gardens, XX, XX) but this will give you tons of profiles to review!