Anti seize is the best, but it stains everything it touches forever. I'd use it if I had a gun that didn't have to have the choke changed very often, like a duck gun where you're happy with Mod choke and plan to stick with it.
If you have a gun where the choke tubes get changed a lot, I'd use a clear grease like Superlube.
Any sort of oil is a distant third, but far better than nothing.
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