The basics: February 1st open call, but only 500 accepted (so plan to submit early!). 3,000-5,000 words. Story timeline somewhere between 1910-1949 (pre-novel). Pays $2,000 ahead of royalties (and no, that's not a typo).

chuckpalahniuk.substack.com/p/the-shinin...

#1 in horror anthologies.
#1 in fiction anthologies.
#2 in science fiction anthologies