My target audience are people "on the fence" of becoming transphobic, and people who cause harm to the trans community without knowing it by spreading misinformation (that they don't know is misinformation) and disrespecting trans people overall.
Right now, I just want a list of transphobic claims to debunk, and ideally sources to aid in debunking them.
While I won't be going through the list point-for-point in the video essay, I intend to slot them into relevant sections that I've already planned out.
Reliable experts to research for reference would also be very helpful. 
My goal is to be as non-hostile as possible--extending the courtesy of respect, in the hopes that some of them will reciprocate that respect.
I don't expect civility from the entire group, but every new ally counts. 
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.