The lone gunmen would be a threat witha custom move:
When you go to the Lone Gunmen for help, roll +sharp (or whatever)
On a hit, you can sift some useful information from their rambling conspiracy theories. On a 10+ ask 3. On a 7-9, ask 1.
- What is this thing's weakness?
- Who knows more about this thing?
- Where can I find this thing?
- What does this thing want?
Or something like that. Another way to do it would be "Ask three, the MC will answer two truthfully, and one with a lie". For that guy eho runs the demon bar in Buffy, it's the same rules but you roll +hard.
That brings up a thing: In Apocalypse World, everything is a threat. Possibly in Monster of the Week you could have allies as well? Then add some mechanics around them, like you could have:
informant (agenda: protect themselves)
secret society (agenda: maintain the cover)
outsider (agenda: preserve the balance)
and so on. Maybe make up a list of sample custom moves for them? Anyway, that's a thing I would do.