Rega R3s or RS3s are often recommended for near-wall placement. I had R1s, which were great. The RS3s have side-firing woofers, which can point either in or out, so they either need nothing between them (for inward-firing placement) or some space to the sides (for outward-firing).
Silverline Preludes might also be a good possibility. I had Minuets, which are excellent speakers and not fussy about placement. I imagine that the Preludes would work well six inches from the wall.
Silverline Preludes might also be a good possibility. I had Minuets, which are excellent speakers and not fussy about placement. I imagine that the Preludes would work well six inches from the wall.