Beth Gutcheon is always a good bet, and she's written a social-life book herself, titled  Gossip . I don't really like that title, it makes the book seem like some relation to Gossip Girl, which it's not. Anyway  the book is very good and lively.

     For fans of  Edith Wharton, a reworking of  The House of Mirth, with emails/photos replacing the secret letters :  The Gilded Age: a novel by Claire McMillan.  A Cleveland (!) debutante is the Lily Bart character, who returns home after New York and rehab, attempting to take off where she left off.