If I love P.D James..

[KateMiskin]

what else would I love?
Already read Tana French, Elizabeth George, Ruth Rendell...

Back to the original - Agatha Christie.

Also, Josephine Tey and Dorothy L Sayers.

Go back to the Golden Age of detective fiction.

Read all or most of these! also Margery Allingham and Ngaio Marsh.

Susan Hill's detective series Seraillier
You read Barbara Vine?
Dorothy Simpson's inspector Thanet series, not as well written as others but cosy crime