Looking for a first jeep

I'm getting my first car this summer and I wanna get a used jeep wrangler. I would be paying for it myself with a part time job so probably within the 13k-17k range. I'll also be handing all the paperwork and buying it myself so I don't wanna accidentally get something that's gonna break down in a week. Where are good places to look and what should I look out for before buying one???