The subreddit Vintage Obscura has been mining for rare gems for years. Their sharing policies contain rules like: "Is it at least 25 years old? Does it have under 30k views on YouTube? Under 50k on Last.fm?" All done in an attempt to find sounds that you haven't heard before but probably should.

They also release a Vintage Obscura Halloween mix every year, composed of the songs they've spent the past year digging through. Side A is entitled 'Swinging Ghosts' and Side B is 'Forget the Light Forever' - helping to frame the songs selected for each set. It's an enjoyable listen to help get you in the proper headspace for whatever spooky rituals you enjoy participating in this time of year.