I listen to nosleep, nightmare magazine, knife-point atm.
I really enjoy listening to Weird Darkness while drawing. It's a mix of creepy true and fictional stories, creepy pastas and creepy news, true crimes and so on. Really fun stuff. He ends each show in a Bible verse which isn't my cup of tea, but it don't come off preachy at all. He chooses passages that meant to be inspirational, not to convert.
Not sure of it's really horror related or not, but for a long time I would listen to supernatural podcasts. Beyond the Darkness was sometimes pretty spooky and Sasquatch Chronicles was just plain bananas. For every terrifying tale, you'd get a few stories that were just too bizarre and ridiculous to be believed. I'll make a note of the podcasts you mentioned and give them a listen!