Minecraft which .MOb drops gravel?

Question is above have heard that someone should drop it.

As far as I know there aren't any, but you can find gravel relatively quickly by the water or in a hell.

No, there's no mob that drops gravel.

Well, I think pigglins can trade that, but I don't think it counts as a mob loot

Piglins sometimes drop gravel when you give them gold.