The topic of natural goods briefly came up in last Wednesday's Zoom discussion. So thinking about what are natural goods within Epicureanism, as well as references such as the Principle Doctrines, etc.
It seems that friendship, freedom, and self-sufficiency are all natural goods, and there could be others?
Also, I just found this article (written in 2021) by Alex R. Gilham.
This article starts out with saying that pleasure is the only intrinsic good, but that there are various other non-intrinsic goods, and the aim of the paper is to classify the Epicurean goods. Will post more after I read it. And if anyone else wants to post thoughts after reading the article, or about the natural goods question, please do so.