Urban Fantasy stories for this month's promo should be UF, Paranormal, Speculative including Witches, supernatural academy, etc. (If you don't know your genre, please learn about it before you write another word--it's that important.) The purpose of this promo is mailing list growth, so freebies only. You must share to both social media (any time during the promo--but prefer within the first 3 days) and that you share to your newsletter/mailing list on the day you sign up with. Stories must have a professional looking cover and must be a complete story: no excerpts/samples. 
No erotica; romance should not be the primary plot. Ripped abs=no response, Thanks!
This blog article will help you immensely if you are not seeing much growth by using Story Origin--if you fall under any of those "what NOT to do" items at that blog or ignore the content in this section you may be ignored. Read the article; it really will help: https://authorchristopherdschmitz.wordpress.com/2019/07/17/how-to-use-storyorigin-to-grow-your-email-list/
also, applicants with less than 150 subs may be ignored (please consult the above article for methods to bump that up)

April Urban Fantasy, Paranormal, & Supernatural Giveaway