Matt Lindland's "Dirty Boxing" (book)
Erik Paulson's CSW Essentials volume 1
Various CSW camp DVDs have lots of ideas of takedowns off of striking combos with Paulson and Greg Nelson. There's early 2000's CSW camp Paulson has for free on youtube I believe.
Darrel Gholar has a Vale Tudo takedown set. Kevin Jackson and Mike Van Arsdale have a big Ultimate Takedown set. Mark Kerr has his Seek and Destroy set which is all power based takedowns and re-counters.
Randy Couture has his sets.
I'm not sure of really modern ones outside of Randy Couture's latest, the Lindland book, and the Paulson ones.
I've no idea what Greg Jackson's stuff is like.
Greg Nelson also has "Clinch" Volumes 1-5, with 5 including takedown strategies Jacob Volkmann uses off the clinch (1-2 focuses more on the Thai clinch, 3-5 on a more Greco-MMA clinch with aspects of Thai and Judo, and even Dumog I believe)