After listening to a few different songs, I don’t think they’d fit the tone of the video essay, BUT they’d work very well for a fiction series I’ve been hyperfixated on that I’ve been wanting to animate. For example, “Hastur” would work really well for a certain really tragic scene from book 1 I have in mind (I won’t specify because it’s a spoiler if you ever intend to read the series yourself).
OOH!! I just found “Crawling Chaos,” that’d work perfectly for the battle early in book 1 against a hive mind leech monster summoned by a blood cult.