The character of every frat will change a bit with time, as seniors leave and sophomores join. You have an entire year to check out all of the houses and see if there are any where you like the people and feel at home. Or you may decide that you aren’t interested in rushing at all. That doesn’t preclude you from engaging in as much or as little of the frat scene as you wish.
I think the essential thing is to be open-minded and not get hung up on frat rankings and other such nonsense.