An interesting site worth dropping into is Book series in order.
It already has a huge listing, but is still growing.
Three series I've recently started reading are:
Bernie Gunther by Philip Kerr
Phryne Fisher by Kerry Greenwood
Jane Austen by Stephanie Barron
I'll soon be starting another series, Inspector Montalbano by Andrea Camilleri. Camilleri is still going strong, even though ninety. He brought out three Montalbano books in 2013, and two each in 2014 and 2015! Certainly puts in the shade my modest outing so far with my Cat Vibrissae and Tana Standish series of books. Must try harder.