/lit/ - Literature

I can give you the analytic side, though i'm not sure if it is the kind of 'ontology' you're looking for. It is mostly just trying to fit social objects into analytic metaphysics, in the Quinean sense of ontology as 'what there is'. It is just arguing about what kind of an existence Groups, Kinds, and the like have (ie. are they mereological groups? is membership a parthood relation? or are they sui generis objects?). If you're looking for how an individual experiences 'existence in the social' or 'their social existence' or something like that, this will be of no interest to you. And it is heavy on the contemporary metaphysics, so without a cursory understanding of that you might be a bit lost (for example, a common position is a global supervenience theory of groups, but that may not make much sense without knowing the discussions around metaphysical dependence). It is also linked quite heavily with the methodological individualism vs holism debate (ontological individualism vs realism in this case) and social construction literature, and all the feminist theory that entails (though aside from Haslanger i haven't included any of that).
I would say read https://plato.stanford.edu/entries/social-ontology/ and if you're still interested, check out the list below. I've avoided the philosophy of language stuff because i don't like it.
>The Construction of Social Reality - Searle
>On Social Facts - Gilbert
>The Metaphysics of the Social World - Ruben
>The Construction of Human Kinds - Mallon
>Resisting Reality - Haslanger
>The Reality of Social Groups - Sheeshy
>'The Supreme court and Supreme Court Justices' - Uzquiano
>'The Metaphysics of Groups' - Effingham
>'Ontological individualism reconsidered' - Epstien
>'The location problem in social ontology' - Hindriks
>'Reduction, explanation, and individualism' - Kincaid
>'The presidential address: Social objects' - Quinton
>'What are groups?' - Ritchie
>'The metaphysics of social groups' - Ritchie
>'Social wholes and parts' - Ruben
>'What Collectives Are' - Copp
>'Individualism and Global Supervenience' - Currie
>'Walking Together: A Paradigmatic Social Phenomenon' - Gilbert
>'The Looping Effects of Human Kinds' - Hacking
>The Social Construction of What? - Hacking
>'The Reduction of Society' - Mellor
>'Realism and Human Kinds' - Thomasson
>'Supervenience Doesn’t Entail Reducibility' - Kincaid
And stuff to do with the collective intention and group agency:
>'Modelling Collective Belief' - Gilbert
>'Aggregating sets of judgments: An impossibility result' - Petit and Christian
>'Groups with minds of their own' - Petit
>Group Agency - Petit and List
>'The Collective Moral Autonomy Thesis' - Copp
>Groups as Agents - Tollefson
>Convention - Lewis