Here is one I stumbled onto through another person's blog. It is through Popsugar and has a lot of different categories. I'm looking for challenges like these, and this one looked fun. It's also very reminiscent of one I did last year. Details from Popsugar below:
Book-lovers, start your reading engines. If one of your New Year's resolutions is to read more books in 2015, get started now with our ultimate reading challenge. From a book your mom loves to a book with a love triangle, we're giving you a wide range of reads, spanning eras and genres, instead of specific books. You don't have to read all 50 books (technically 52, since one is a trilogy), but it's a fun incentive to diversify your reading — you may be surprised by what you find you enjoy! Download our printable, and check off the books as you go (then use a site like Goodreads to keep track of what you've read). Pin the handy graphic below for reference, and share with your book club BFFs!