Commuting Question

Hey y'all! I am starting in the MSW program this coming fall, but am trying to find the best/not expensive places to live. I was thinking of living in West Allis or a different suburb, but wanted to get other thoughts on areas to live as I am not too familiar with the area.

I also know that the permits for parking for commuters are very pricey. Are there good bus systems there that I would be able to take or is the permit kind of the only way?