In the Holman Library catalog, or the KCLC catalog, you can try such keyword searches as:
"short stories" AND (collection* OR antholog*)
"fantasy fiction" NOT (storytellling OR criticism OR psycho* OR rhetoric OR authorship)
"American Indian authors" AND (antholog* OR collect*)
fiction AND Caribbean
"Ray Bradbury" AND "short stories")
You may want to limit your search to ebooks.
Please note that many searches will return works of criticism and other undesired results, in addition to the literary works being sought. Culling will likely be required.