Here are some things that have been useful to me, and some other things that may be useful to you. :)

Spooked - Fantastic listener-submitted scary stories!

The Black Tapes - a truly horrifying fiction podcast. One of the first pieces of horror media to start me writing horror comics.

Spirits - a mythology and lore podcast. Check out their urban legend series!

Dirty Old Ladies - an indie comics podcast that doles out some great advice.