marxists.org keeps quite representative text banks in various languages penned by or pertaining to authors in various countries, but for the most part cultured around one theme. They also have texts by and/or about philosophy in general, such as John Locke's:
https://www.marxists.org/reference/subject/economics/locke/index.htm
Plato, Machiavelli and Aquinas. Something great about those "marxists" is that they don't use javascript crap.
Do you know of any other similar sites out there?
lbrtchx