If you are thinking of smaller speakers, you should check out a couple of Swedish offerings: Guru G-10, and Sjofn's "the clue". Both are designed to sit literally 1" from the back wall, being designed for the boundary reinforcement.
I run "the clue" in my living room system, because this suits my significant other much better. They sit in bookshelves on each side of the fireplace, and to be honest, they sound pretty good and articulate. Bass is adequate.
I run "the clue" in my living room system, because this suits my significant other much better. They sit in bookshelves on each side of the fireplace, and to be honest, they sound pretty good and articulate. Bass is adequate.