If you like P. G. Wodehouse, try...
Mapp and Lucia by E.F. Benson ; with a new introduction by Stephen Pile
Merry Hall by Beverley Nichols ; with a foreword by Ann Lovejoy
The pursuit of love ; &, Love in a cold climate: two novels by Nancy Mitford ; foreword by Jessica Mitford
Diary of a provincial lady by E.M. Delafield ; with a preface by Mary Borden ; with illustrations by Arthur Watts
Jeeves and the Wedding Bells by Faulks, Sebastian