A few freebies from an email newsletter...
Hallowed Games, first in the Hallowed Games series by CN Crawford
Kindle US:
https://www.amazon.com/dp/B0CM1BB54F
Kindle UK:
https://www.amazon.co.uk/dp/B0CM1BB54F
Bewitched, first in the Bewitched series by Laura Thalassa
Kindle US:
https://www.amazon.com/dp/B0BMGYR5XP
Kindle UK:
https://www.amazon.co.uk/dp/B0BMGYR5XP
First Ritual: Supernatural Battle, first in the Coven Caves series by Kelly St Clare
Kindle US:
https://www.amazon.com/dp/B0BRXMNG56
Kindle UK:
https://www.amazon.co.uk/dp/B0BRXMNG56
I don't think I've read anything by St Clare, but have read and enjoyed other books by Thalassa and Crawford. And I did see that St Clare has teamed with Shannon Mayer on a couple of books, and FWIW I have liked several of Mayer's books.