Which NPC Slots Are Safe To Use?

[CyberOcelot]

I downloaded a mod that uses the "security guard 2" slot in CCT. To be safe, I used a different slot so as not to potentially break any Universe Mode cutscenes. I'm curious if we have a resource anywhere that lets us know where certain NPCs are used so we can plan ahead? I wasn't able to find any. I certainly wouldn't want to put poor little Kacy Catanzaro in a position where she needs to break up a fight between Braun Strowman and Andre The Giant, ya know? 😛