Here is a useful link for mystery lovers http://www.stopyourekillingme.com/.
A blurb from their website reads
Stop, You’re Killing Me! is a resource for lovers of mystery, crime, thriller, spy, and suspense books. We list over 2,800 authors, with chronological lists of their books (over 32,000 titles), both series (3,200+) and non-series.
Some of my favorites
Anne George Southern Sisters Mysteries
Carolyn Haines Sarah Booth Delaney Series
Magaret Maron Judge Deborah Knott Mysteries
Catherine Coulter FBI Thrillers