I saw a Good Omens rec list going around and read some of them.

I particularly " One Golden Glance (it's a kind of magic)", which features Crowley getting summoned somewhere (more would be spoilers), and " So You Need To Get Into A.Z. Fell & Co.; Now What? (A Guide For Unfortunate Bookworms)" (the title should be self explanatory).

Feel free to add more recs!

- Tomash