The Italian Andrea Camilleri. Tried to read his first novel, La forma dell'acqua from 1994 (The Shape of Water in English), but couldn't warm to his style, narration or characters! Sorry, Peter!
The American Linda Barnes. Tried Snake Tattoo, one of her Carlotta Carlyle novels, but it was pretty boring and nothing hooked me. Second-rate Paretsky or Grafton, both of whom I haven't cared much for, so...

But I just started Stephen Greenleaf's Beyond Blame from 1985, which I found earlier today at a library remainder sale, and I'm really enjoying it.

Edit: here's a link to an earlier post about Greenleaf.