My Girl Scout troop is both working on the Secret Agent badge and falling in love with Enola Holmes, so they are asking for books. I looked especially for girl detectives, and included both historical and contemporary mysteries with a mix of mysteries from murders to mysterious notes.
The Sisters Grimm (series) by Michael Buckley – first book Fairy-Tale Detectives
Me, Frida, and the Secret of the Peacock Ring by Angela Cervantes
The Great Shelby Holmes by Elizabeth Eulberg
Winterhouse (series) by Ben Guterson
The Detective’s Assistant by Kate Hannigan
The Mighty Muskrats (series) by Michael Hutchinson – first book The Case of Windy Lake
The Parker Inheritance by Varian Johnson
Nancy Drew (series) by Carolyn Keene
Enola Holmes (series) by Nancy Springer – first book The Case of the Missing Marquess
Wells and Wong Mysteries (series) by Robin Stevens – first book Murder is Bad Manners
The Harlem Charade by Natasha Tarpley
The Way to Bea by Kat Yeh
What books would you add to this list?
alibrarymama 
I haven’t seen Enola Holmes yet, but love your list. I really enjoyed The Sister’s Grimm and the Nancy Drew series. I will check out some of the other ones on your list.
Thanks, Natalie! I couldn’t get my kids to watch, but my love and I watched the movie right away because we both loved the books.
Dominion by Shane Arbuthnott is a good steampunk one; although the girl isn’t a detective, she is spunky as heck and has a big mystery to unravel!
Ooh, yes, thank you! I did enjoy Dominion lots, too.