Where to get the best exchange rate in Córdoba, Argentina
In Argentina, having cash is important for travelers to get around because it's the best way to pay for many things. You can get cash by either using the ATMs or exchanging foreign currencies. As I have explained here, ATMs are wildly expensive to use in Argentina, not only will you end up paying 15-20% in various fees, the exchange rate they use is very bad.
So it's best to bring in foreign currency to exchange. US dollar is the most preferred currency and you will get the best rates with USD. Euros are also good. Other currencies are far less popular and because of that the rates will not be as good as USD or EUR
However, I strongly recommend bringing USD instead of EUR, because you can exchange at what's know as the "Blue Dollar" rate. This is basically the informal market rate instead of the official exchange rate. There's usually a massive difference between the official and informal rate. This is a snapshot I took on this website which tracks these rates:You can see that you get more than 40% less at the official exchange rate, used by banks, ATMs, airports, etc. You cannot get the Blue Dollar rate with any other currency
In order to get the best rate, you need to find the informal exchangers no matter where you are in Argentina, as these places are the ones that will give you the Blue Dollar rate
In Córdoba, the they are concentrated by Plaza San Martin (located here), situated in the center of the city. Specifically, you will find them on Rivadavia street, which is one of the streets extending from the Plaza (the street is called Buenos Aires street South of the Plaza and Rivadavia street north of the plaza):
When you get here, you will most likely have people approach you about exchanging money (they'll say "cambio", which means change). You can also just ask around the street kiosks for cambios. Keep in mind that Blue Dollars are technically illegal, so most of these exchangers don't have physical stores, they're just traders that hang around the street. But they're not particularly targeted by police either, so it's quite safe to use them for exchange
Be sure to Google the latest Blue Dollar exchange rate before you go so you have a target rate in mind. You should haggle with the exchangers too