Anything by Margaret Forster, Margaret Drabble, Nina Bawden or Elizabeth Jane Howard.
I just bought
Circles of Deceit by Nina Bawden, but haven't yet read it. Have you read that one?
I haven't read any Margaret Forster, but I like Margaret Drabble a lot and I absolutely adore Elizabeth Jane Howard. She's definitely one of my all-time favourites. Others would include Elizabeth Bowen, Elizabeth Taylor, Evelyn Waugh, Truman Capote, F. Scott Fitzgerald, Oscar Hijuelos and Oscar Wilde.
Elizabeths and Oscars seem to feature prominently!