Book recommendations for Agnieszka
Similar to:
Supernatural:
The Harper Connelly Series by Charlaine Harris
Blue Bloods by Melissa de la Cruz
Cal Leandros series by Rob Thurman
Strange Angels series by Lilith Saintcrow
Neverwhere by Neil Gaiman
Doctor Who:
The Dresden Files by Jim Butcher
The Lies of Locke Lamora by Scott Lynch
Dream Park by Larry Niven, Steven Barnes
The Name of the Wind by Patrick Rothfuss
Best Served Cold by Joe Abercrombie
For the Avengers, I just recommend any of the comics, can't go wrong with that!
I also looked for some books similar to Sherlock Holmes/Sherlock, and there were many crossovers, but I would personally just reccomand the original stories, but some of the crossovers did have potential.
I'm sorry to say that I haven't read all of these books, but mmany of them were given good ratings by people who have seen the series. I found that some of them had themes that just barely tied to the series, but still looked really good.