I am researching labor strikes in post-WWII Iraq and Iran and have found that most discussion among the literature I'm reading treats labor as a secondary concern to Communism and anti-colonialism. Obviously labor cannot be separated from Communism/anti-Colonialism completely when discussing the Middle East, but I am wondering if there are any explicit labor histories out there that I am missing. Even though my specific focus is Iraq and Iran, I believe literature with a broader lens will be helpful as well.
I think your best place to start is with the work of Zachary Lockman and Joel Beinin.
Lockman has two monographs on Labor in the ME and Palestine:
Workers and working classes in the Middle East : struggles, histories, historiographies (Albany: State University of New York Press, 1994).
Comrades and enemies : Arab and Jewish workers in Palestine, 1906-1948 (Berkeley: University of California Press, 1996).
And one he wrote with Joel Beinin:
Workers on the Nile : nationalism, communism, Islam, and the Egyptian working class, 1882-1954 (Princeton, N.J. : Princeton University Press, 1987).
Beinin has his own work:
Workers and peasants in the modern Middle East (New York : Cambridge University Press, 2001).
Workers and thieves : Labor movements and popular uprisings in Tunisia and Egypt (Stanford Briefs, an imprint of Stanford University Press, 2015).