Alisa Bokulich and Peter Bokulich have edited a helpful new volume with the title Scientific Structuralism, as part of the Boston Studies in the Philosophy of Science. There are nine contributions, which approach structuralism in the philosophy of science from a variety of perspectives: ontological, epistemic, representational and even in connection with structural explanation.
Here is the table of contents:
STRUCTURAL REALISM: A NEO-KANTIAN PERSPECTIVE, Michela Massimi
IN DEFENCE OF ONTIC STRUCTURAL REALISM, Steven French and James Ladyman
STRUCTURALIST APPROACHES TO PHYSICS: OBJECTS, MODELS, AND MODALITY, Katherine Brading
MATHEMATICAL STRUCTURAL REALISM, Christopher Pincock
STRUCTURAL EMPIRICISM, AGAIN, Otávio Bueno
STRUCTURAL REALISM: CONTINUITY AND ITS LIMITS, Ioannis Votsis
STRUCTURALISM ABOUT SCIENTIFIC REPRESENTATION, Martin Thomson-Jones
ONTIC STRUCTURAL REALISM AS A METAPHYSICS OF OBJECTS, Michael Esfeld and Vincent Lam SCIENTIFIC EXPLANATION AND SCIENTIFIC STRUCTURALISM, Mauro Dorato and Laura Felline
Some readers should be able to access the book online here.