If you like Jacqueline Winspear, read Catherine Aird.
The Religious Body
If you like Lisa Gardner, read Ruth Rendell.
An Unkindness of Ravens
If you like Ellery Adams, read Dorothy L. Sayers.
If you like Joanne Fluke, read Patricia Wentworth.
If you like Deborah Coonts, read Eileen Goudge.
Bones and Roses
If you like Sara Paretsky, read Margery Allingham.