There are all kinds of resources out there if you're aiming to find good mysteries to read - your local library can probably provide a list of local authors, or books set in your area, which can be fun.
I subscribe to a lot of author newsletters so I don't miss their new releases - authors like Brad Parks, Hank Phillippi Ryan, Christina Dodd, Brenda Novak, Suzanne Brockmann, Katia Lief/Karen Ellis, Lois Winston, Joanna Campbell Slan and Libby Fischer Hellmann are just a few whose updates I get. You can usually subscribe on an author's website.
When it comes to blogs, you can't go wrong with Janet Rudolph, whose seasonal book lists are fabulous! Janet's posts also announce award-winning books, upcoming conferences and even mystery-related cartoons. Mystery Fanfare is here:
http://mysteryreadersinc.blogspot.com/If you lean toward cozy mysteries, or what I call "cozy-ish crime," check out Dru Ann Love's prolific posts at Dru's Book Musings:
https://drusbookmusing.com/ Almost every day she features books and showcases authors. I met Dru Ann at Malice Domestic and she's even more fun than I thought she'd be!
On Facebook, the group DorothyL is described as a "Discussion of Mystery literature and related media. Celebrating 24 years as a Listserv discussion list
http://kovacs.com/dorothyl/" Subscribe:
http://listserv.kent.edu/dorothylhttps://listserv.kent.edu/cgi-bin/wa.exe?A0=DOROTHYL