Who has promise as thinker of solidarity?

Derrida, for whom there is no Other (not even one who is lacking), but there is a radical quasi-trancendental other. What does this hold for solidarity?

=> Politics of Friendship

Jean-Luc Nancy, elaboration of being-with as an alternative to the lacking Other.

=> Which book/article looks promising?

Zizek, the basis of solidarity is the shared experience of a schism. The enemy is the ways in which we cover over this antagonism.

Catherine Malabou, rejects Derrida’s radical other. Believes that we can act in the place of the other. How does she rethink immanence in a way which is different to Zizek?

=> Which book/article looks promising?