Nihonjinron

For the US, there is a whole raft of literature of non-American intellectuals writing about their impressions of the USA.

It is well worth reading, especially if don’t travel outside the US much.

Democracy in America by de Tocqueville is the earliest famous work.

https://www.history.com/topics/france/alexis-de-tocqueville

But pretty much every global intellectual in the 20th Century found themselves in the US, usually starting in NYC, and wrote about their impressions in a book, essay or article.

A random few

Hermit in Paris, Calvino

Journey down a Rainbow, Priestley and Hawkes

America, Baudrillard

America day by day, de Beauvoir

Also

USA for Beginners, Atkinson (Penguin)

“Ces Cochons D’Américains!!”, Lehman...focusing on pork production I suppose, I don’t read French

America as Americans See It, Ringel, is a collection of essays from 1932 by US writers about the US. A wonderful collection both about America and the early 1930s.

Those writings about the US need a crisp word to describe the genre, like nihonjinron.