Wretched of the Earth, while old, really dives into the psychology of those oppressed under colonialism and the processes that lead to uprisings.

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Discourse on Colonialism by Aimé Césaire.

For Parenti, I'd suggest Inventing Reality and Make-Believe Media.

The Sword and the Dollar: Imperialism, Revolution and the Arms Race

Parenti: against empire. Shouldn't be anything too mind blowing for an experienced Marxist, but still useful. Easy read - just take it with a grain of salt. In classic parenti style, there's no sources, and it's written like an opinion piece.

Others here are recommending his stuff on US media - just read manufacturing consent by Chomsky & Herman for that.

Fanon: wretched of the earth. A classic. See also: Aimé Césaire's discourse on colonialism , which is only 40 or so pages, so get the PDF online.

Inventing Reality and Land of Idols are good. If you want a short break from modern(ish) politics, I also recommend Assassination of Julius Caesar