Reddit reviews Cruel Beauty

The His Fair Assassin trilogy features Breton assassin nuns who serve a death god. In the books it states that the gods are pre-Christian but are now worshipped as saints. Those who still worship them as gods are known as followers of the old ways. I definitely recommend the series.

Though not Pagans, one of the main character's sisters in The Passion of Dolssa is a fortune-teller, and Dolssa herself is a mystic fleeing from inquisitors after being branded a heretic.

My friend recommended Till We Have Faces to me. It's a retelling of the myth of Eros and Psyche.

Cruel Beauty's main characters are Hellenists who practice Hermetic magick, and "As Above, So Below/As Within, So Without" is a running theme in the book. There are also Celtic pagans in the book.

I'd also say Sabriel. Sabriel is the daughter of a necromancer and she and her father practice Charter Magic, which uses runes. There is also a community of seers in the book.

I tend to read a lot of fantasy and YA, so hopefully this isn't a turnoff.