Best speakers for near rear wall placement?

Most Naim speakers are designed to be placed right against the wall, but expect a «flat wall» soundstage...

Thiel SCS?

I can second Hoggshead's recommendation - I have the Kitty Kat Revelator monitor, specifically designed for near-wall applications. Amazing speakers "in-my-system" fronted with Wadia CDP and Plinius amplification.

Vandersteen Quatro.........
We have installed many of these full range speakers.
Some have been even four inches from the wall.
With their room compensation feature adjusted to this position we experienced remarkable results.
John
Dealer Audio connection

I can place a vote for the Wilson Duettes. I have a pair right in front of me now that are about 3 inches from the wall and toed into the listening position. The result is truly amazing.

Excellent soundstage width and depth and very good bass response (especially considering the size of the speaker).

Unfortunately, they are expensive... with stands the cost is around $13K.