Bundle of Holding has a Tachyon Publications bundle.
Ellen Datlow's Tales of Terror
I have most of these titles from previous bundles. The main thing I'm missing is the Lansdale collection, so I'll pass.
There are two tiers. $25.27 gets you everything:
Novels:
We Are All Completely Fine by Daryl Gregory
The Stress of Her Regard by Tim Powers
7 Ellen Datlow Anthologies:
Body Shocks
The Cutting Room
Hauntings
Lovecraft's Monsters
The Monstrous
Darkness: Two Decades of Modern Horror
Nightmares: A New Decade of Modern Horror
Collections:
Beyond Frankenstein - The Complete Supernatural Short Fiction of Mary Shelley
The Best of Joe R. Lansdale - The 2010 career retrospective
The Very Best of Caitlín R. Kiernan
Slipping by Lauren Beukes