It’s a bit strange not to see Arthur Machen mentioned. It might be a silly question, but have you read “The White People”? It’s what “The Twisted One” builds upon. Cotgrave, Ambrose, The Green Book – all that comes straight from Machen’s story. I do not know, if you are going to like it, it’s being written more than a century ago... but if you do, Machen has more like this.
The Colour out of Space
By H. P. Lovecraft
this is my favorite Lovecraft piece. phenomenonal concept, and I think it was when he was getting to transition away from commercial magazine writing so the structure was getting better than in previous stories.
I know this is a book community but it's worth mentioning this also had the only movie adaptations I stand by
I'm not sure if these are quite the same sort of thing you're looking for, I haven't read any of the examples you provided to compare, but two podcasts that are personal horror favorites of mine and kind of feel like they might sort of rub up against what you're looking for- Old Gods of Appalachia, and Alice Isn't Dead
You are the first person I've seen in the wild to recommend OGoA. This makes me so happy!! I stumbled upon them via Kickstarter when they did their TTRPG and found out the writers are from 2 towns where I have also lived.
You might like a horror podcast:
https://www.thesiltverses.com/
or
https://www.oldgodsofappalachia.com/
Seconding The Silt Verses! It's such a good story and beautifully told.
"The Only Good Indians" by Stephen Graham Jones. Watch out for deer. You never know.
I don't like when I'm hiking and they stare me down as I walk by. I'll add this to my list thanks
Thank you these all sound fantastic!
Book reader community.