The Gamestop stores weren't hiring. What is another good first job for retail?
Best Buy is probably the best out of the B&M stores. I've heard nothing but bad things about Target from friends who have worked there, Walmart is lols, and other retail mall stores suck in terms of starting pay. Find one nearby and ask if they're hiring.
You have to apply online and take the usual survey that most retail jobs make you do, but a lot of it is standard easy answers. Just make sure to never check anything except "strongly agree/disagree" and you should be set for a phone interview.
Speaking of phones, make sure to call them a day or two after you apply. I had to keep bugging my store because they were in the middle of transitioning to a new method of hiring people (the store manager even told me I was the guinea pig), and it will double because it shows that you actually want the job.