Ken is being harsh, but fair.
One result of the education system is that too many people are taught that there are good clear solutions to problems, often these solutions are elegant. Teachers praise elegance both in your work and in the things they teach.
This ain't such a situation.
To be asking such a question, I have to assume that you're not in some program where internships are being found for you. I infer that this is a less 'branded' program.
...or not, you have not shared much.
I'm told by some of my younger staff that there is some sort of 'enternit' on many computers, apparently it is quite the thing for finding pornography and illegal music, perhaps even pornographic music.
These 30something whippersnappers claim that you can actually find useful things using 'goggles' which apparently aren't any form of eyewear. Who knew ?
You need to goggle for banks, hedge funds, regulators, asset managers, and lots of other wordy things that will give you a list of people who might, just give you an internship if you write a very good letter introducing yourself.
Most won't.
We are Capitalist Bastards (tm), and enjoy nothing more than sneering at humble pleas for employment from your working class types. But sometimes, for our own amusement we take on such people so that we may both take pleasure in payronising them, and offload some of the work that the office cleaners regard as too menial.