Can I get some fun course suggestions for a school themed around the multiverse and portal travel?

For context, my players (and everyone across the multiverse that isn't a god or a creature trapped in The Abyss) have been displaced from home by some malfunctioning portals and haven't had luck getting home in part because they do not know exactly how portals functions or the details of the multiverse.

They are coming up on the opportunity to get a formal education on these topics in The Beastlands which is basically an excuse to have an academic side quest. Obviously I'm not going to make them sit through actual lectures but I think it would be fun to have some small bonuses to knowledge checks depending on which course they choose (+1 on nature checks involving Mt. Celestia things like that).

I've already ideated a few basic courses:

Intro to Portals (with an associated lab)

Intro to the Multiverse

Individual classes about each plane and the outlands

The Multiverse and The Arts

Gods and Lesser Deities

The Thing About Dragons

Ancient Histories

I also just want some dumb goofy filler for the course list to make them laugh a bit. Something an NPC student can say they're running to before leaving a conversation. Sure the table could take the class and I can figure out the logistics later. Genuine suggestions are welcome too.

Bonus: If you have any ideas for some NPCs around the school I'd love to hear them! Its literally the entire multiverse that's been displaced and I've been having a ton of fun building out some NPCs for the players to potentially interact with during this side quest.