The strongest argument for a god is that the idea that the material universe would come into existence without an external cause violates every known law of said universe. The problem for most theists is that it’s a long way from this argument to belief in a specific revealed creed.
Even if the uncaused cause argument leaves open very generic possibilities like deism, the mere existence of universal physical laws would heavily favor monotheism, would it not? Like we can logically rule out storms being caused by the gods of the greek pantheon duking it out!