Hi again lalit...
9 inches from rear wall definitely rules out any rear ported floorstanders from the equation. You will have to consider front or bottom ported speakers. Some tannoy's come to mind
Secondly as haisaikat correctly mentioned , please consider high sensitivity speakers when planning to run off an avr. Pairing low sensitivity speakers with a multichannel avr is a recipe for disaster.
I know i sound like the bearer of bad news. But i use a marantz sr6011. So I know the ability that lurks in those boxes. So if you are patient and willing to go second hand, there will be some good kit coming up used from time to time. If I see anything that looks like a good match or a good deal I will ping you. Fondly hope that makes up for sounding like a villain in both my posts