What is a good first credit card?

I’m a college student and I need to build up my credit. Owning my own cell phone did nothing for me, and even though I’ve had the same checking account for over 4 years I’m still being denied for signing my own student loans. (I already have student loans, but they clearly didn’t help either). I need a way to build my credit and I also think it might be practical to get a credit card, you know “just in case of emergencies”. Where’s a good place to start? (oh, any my bank won’t give me one because I don’t make enough money)