There are plenty of post players who are great. There are very few teams with two players that Bass and KG will have trouble handling.
The best post players are Bynum, Cousins, Lopez, Jefferson, Howard, Gasol, Millsap, DeAndre Jordan (He now has a beautiful quick turn around jump hook), Chris Bosh, Carmelo Anthony, Lebron James, Tim Duncan, Dirk Nowitzki, Greg Monroe, Roy Hibbert (work in progress), Al Horford, Andrew Bogut, Spencer Hawes, David Lee, Zach Randolph, Marcin Gortat, Marc Gasol, Pau Gasol, Dwight Howard, Kevin Love, Pekovic, Bargnani and Josh Smith (when he feels like it)
That's probably everyone. I don't count guys like Boozer, Stoudemire, Chandler, Ibaka, Durant or Griffin until they display ability to play in the post effectively.