Horror books with witches and/or ambiguous supernaturality?

Here are some books and movies that i loved, and i'm looking for a similar vibe: The haunting of hill house, Rosemary's baby, The little stranger, We have always lived in the castle, the Suspiria remake and The VVitch.
(also i thought I'd mention Sharp objects, as i really enjoyed it, and although it's not supernatural or witchy, i'm also looking for that slow burn gothic mystery vibe)

I guess they're stories where the supernatural slowly keeps creeping on, and it's ambiguous throughout.

I just finished HEX by Thomas Olde Heuvelt, but it wasn't very engaging to me.

Thank you!!