Not knowing Argentina particularly well, it's hard to say exactly where Milei should start.
Where would you start in Milei's place?
In the US context, my focus would be on shutting down the completely unnecessary agencies and vetoing everything except for cuts and repeals.
How Not to Desocialize: Argentina Edition
By Benjamin Seevers
"While Argentina president-elect Javier Milei plans to privatize state-owned enterprises, there is a right way and a wrong way to privatize these entities. Murray Rothbard and Hans-Hermann Hoppe show the way."