Investment Banking Summer Internship Jobs In Chicago

Hey guys, I am currently a junior at the University of Michigan. I am a non finance major at a target school for the midwest. I have interviewed a lot this year and I am still looking for an internship. Does anyone know of any boutique IB in Chicago that are still hiring summer analysts? The list of boutique investments WSO has is pretty outdated and I am in panic mode. I have been calling so many. Also, how would you advise for me to reach out to employees of the firms? Because I am getting connected with HR, and well.. they have been lame at getting back to me. It is a bit late in the game and I am freaking out