Which loudspeakers work best close to back wall?

If your NOT trying to fill a large room the Sonus Faber Toy Monitors are perfect for near wall placement.

My Classic Audio Loudspeakers are 6 inches from the rear wall. They image great with plenty of depth and I don't get a lot of boom- very natural bass, the best I have had in that room.

They are also very easy to drive.

The Audiokinesis speakers are quite flexible due to their adjustable rear port. I have put my pair close to the wall with great results. If need be I have plugs that can seal the port as well. Very reasonably priced as well.

If you can find them the Snell A-III speakers were designed for placement close to a wall. As were the Allison Ones.

Close to the wall is similar to infinite baffle, so I would avoid full 6dB baffle step compensation. However, since that is not a published spec, just avoid "warmer" or "British-sounding" speakers. Without any idea of personal preference and amplification, that's all I can offer.