As someone who has finished classes (and was firmly in the STEM camp while taking them), I do wish I had had something of the formal liberal arts that was taught historically. Does anyone have any recommendations for ways of self-teaching the trivium and quadrivium?

I've heard good things about "The Trivium: The Liberal Arts of Logic, Grammar, and Rhetoric" [0] but I haven't gone through it yet.

[0] https://www.amazon.com/Trivium-Liberal-Logic-Grammar-Rhetori...