For a good introduction to post-critical thinking, the best place to start is probably Mary Zourzani’s Hope: New Philosophies for Change (click to download), which includes relevant contributions from Michel Taussig, Julia Kristen, Michel Series, Brian Massumi, Isabelle Stengers, and beyond.
In addition, the following is a list of freely distributed (open access) books/texts of particular relevance to the post-critical project.
Badiou, Alain. (2011)
The Rational Kernel of the Hegelian Dialectic
Bryant, Levi et al. (2011)
The Speculative Turn: Continental Materialism and Realism
Harman, Graham. (2009)
Prince of Networks: Bruno Latour and Metaphysics
Law, John. & Ruppert, Evelyn. (2016)
Modes of Knowing: Resources from the Baroque
London: The Mattering Press.
Tarde, Gabriel. (2012)
Monadology and Sociology