Great resource to explore new fine art photography projects and artists is LENSCRATCH https://lenscratch.com/photographers/

But have you explored all of the old ones yet? Magnum has excellent courses, each is a rabbit hole of references and inspiration: https://www.magnumphotos.com/learn/ (personally working through the Alec Soth one atm)

Regarding photobooks, the best way by far is to visit your local brick and mortar book store for a photography section, or find local community place / coffee shop that has these available. Just pick whatever catches your eye! I know some libraries also provide access to photobooks, should be a good resource if you have one nearby.