@macgenie It's a shame we didn't overlap on authors, but I do thank you very much for responding and trying.
I've read most all of the Grand Dames: Christie, Sayers, Marsh and they are my favorites. Camileri I have not read, and I should, but I have seen all the Montalbano TV series (there are over 20 episodes I believe each about 90 minutes long) and they are excellent. Lovesey I'll have to try out, thanks! Rendell, I can't remember if I have read her or not. I'll blame age.
I hope you'll take my list as recommendations, each mystery author is very different but they all bring good things to the table.