I find this slightly amusing, as I know a few Argentines with some money, and they put it into US assets- Real Estate in Miami, or in a bank account in the USA if possible, or, at the very least, in physical US hundred dollar bills. The US, regardless of its relatively small pandemic inflation bump, is still, globally, the universally sought place to keep assets safe- Billions of dollars are invested in real estate, businesses, stock, Treasuries, and even just CDs paying a pretty low rate of interest by Russians, Chinese, Saudis, South Americans of all nationalities, Norwegian retirement funds, even narco trafficantes.
IF, and its an if with a lot of qualifiers, you really wanted to park money long term in Argentina, most argentines and, for that matter, me, would and have put it into real estate. Because good apartments or houses in Buenos Aires will, most believe, trend up in the long run. I have a couple of friends who bought cheap during the pandemic, knowledgable, local friends who are experienced at rehab and construction.
I cant imagine, though, that your assets, whatever they may be, would probably be more liquid, and more protected against inflation, in some nice safe, boring, US investment. An index fund, for example.