Over the decades, I've found that nearly anything will work just fine for BP firearm anti-seize applications.
Everything already mentioned will be virtually foolproof.
By simply removing & thoroughly cleaning threads on vent hole liners or nipples between use, you're already ensuring clean threaded surfaces that are unlikely to seize up anytime soon. Bacon grease, Olive Oil, tallow + beeswax ball lube, Frog Lube, Militec Grease, Tetra Grease, Hi Temp Bearing Grease, Rem Oil - they'll ALL work for the shooter who cleans at the end of a days' shooting session, and they all work as short-term solutions.
You're not likely to install a nipple then shoot it for a few years without removing it for cleaning. This is in contrast to the specialty & milspec anti-seize compounds that are for assemblies that are made with the idea that they may never be disassembled, or at least not until an adjacent component needs removal or replacement a long time into the future.
So, if you shoot & clean on a regular basis, whether modern firearms or Black Powder, proper lube helps run the show. Unfortunately, that super lube some folks swear by as "Long Lasting", usually won't have a working surface life that exceeds the range of time from the day it was applied, to a few days later when it's all wiped off during cleaning after use.
For seasonal or archival lube, Barricade, RIG & all the hi-tech stuff has merit, since olive oil will likely varnish up in storage.
The important thing is that you use SOMETHING, whether chosen by price, compound color or smell, or the fact that you can pocket some from the shop at work.