The first one listed for each unit is the one distributed through Canvas/class and the second is the excerpt of the College Board's Course and Exam Description booklet relevant to each unit. The CED version has more information.
Unit 5 - Revolutions
Course and Exam Description (CED) Version
Unit 6 - Consequences of Industrialization
Tom Richey, an AP European History teacher, has a SlideShare presentation (click the image to go there) that covers the people listed to the right. (And, a tiny bit on Locke). If you want the video lecture, it is on YouTube.
School of Life -
Political Theory - This playlist contains some Enlightenment thinkers. Voltaire happens to be on the literature list though.
Western Philosophy - This is a longer playlist, but at least 3 of the people are on it.
Various Crash Course videos on the topic.
Freemanpedia Recaps
Heimler and Rupertus videos that cover each part of Unit 5: Revolutions.