If you can bring lots of crisp 100 dollar bills, and all the electronics you can carry is pretty much all you need to bring. The rest depends on you as in what you really need to use. For example, I sleep with Breath Right at night. They don't have them in Argentina any more due to Covid and supply chain problems.
You can find some really good quality made in Argentina clothes and shoes if you know where to look. It is better than buying cheap shit that ends up in landfill in less than year.
In general everything is much cheaper in Argentina, especially if you can convert dollars to pesos using the blue rate.