This question is very vague.
If you're asking if there are beings more powerful than Satan out there, then yes. The concept that any one entity can be an omnipresent, all powerful being with absolute dominion over everything in the universe is a jewish concept present throughout their programs, and is merely fantasy.
Satan is insanely powerful, the most powerful single entity that we are aware of. But as the universe is infinite, so are the possibilities, and out there certainly exist entities beyond Satan. Keep in mind also, Satan's power is also ever-growing, for He is not a stagnant entity.
Satan brings one closer to godhood, not to any other "god" specifically.