Listing Foucault, but not David Hume, says a lot.
A few surveys would probably be more valuable than trying to slog through most of the primary sources of philosophy.
- Will Durant, The Story of Philosophy
- A.C. Grayling, The History of Philosophy
- Anthony Kenny, New History of Western Philosophy (4 volumes but also published as a combined single volume ebook)
- Adam Peterson, A History of Philosophy Without Any Gaps (3 volumes, 4 later this year, also a podcast[1])
- Bertrand Russell, A History of Western Philosophy
A common sentiment is that Bertrand Russell is too biased in his presentation, but his survey was a popular classic for many years.
Perhaps also a supplement specific to eastern philosophy, like van Norden, An Introduction to Classical Chinese Philosophy?