Anonymous wrote:The Widows of Malabar Hill by Sujata Massey
The Storied Life of A. J. Fikry by Gabrielle Zevin
I just read and enjoyed this. I think it could be a good fit for what you describe. It's lighter than Tomorrow, Tomorrow, Tomorrow (and not quite as good IMHO, maybe for that reason?) but still substantive and well-written.
I also really enjoyed The Second Ending, by Michelle Hoffman. Funny and fast-paced, but again, with substance. Lots to discuss, especially if your book club members are in their 40s or 50s.
If you all are in the mood for a legal thriller, maybe try Central Park West, by James Comey. Not great literature, but I enjoyed that there was a female protagonist and other central female characters, plus a decently paced plot, and muliple court scenes. Plus, it might be fun to talk as a group about how, if at all, the "James Comey" factored into your reading experience.
Finally, if you all are up for trying something more quirky and out there, I highly recommend anything by Kevin Wilson. The Family Fang is my favorite - borderline bonkers, and I loved every page when I read it on vacation last year. I also really liked Now Is Not the Time to Panic. And his collections of short stories are fantastic, too. The guy can really spin good story!!