Any other theories? Anyone?

I wonder if there are other theories that are contrary to the big bang. What if, the whole material universe did not start with a big bang, and instead, had no beginning at all? And if the universe had no beginning, maybe, it will have no end. What if, the universe is shaped like many typical basic forms of matter, a sphere or a globe. What if the universe, goes on and on, in this unending see of space but like a sphere or a globe, it has no beginning, nor an end. And congruently, what if time, like this universe, had no beginning nor an end? Now, wouldn't that be an interesting theory?