Need speaker recommendations.

I need recommendations for speaker brand/models that can be placed relatively close to the front wall without degradation in sound quality. Say, within 1-2 feet. My front wall is ’h’ shaped (side view). There is a 1-ft deep ledge at the height of 2-ft 4-inch from the floor (imagine right half of the letter ’h’) and the overall height of the wall is 9-ft. Front to back wall is 18-ft.

Budget under US$8,000. Don’t care between stand-mounted or floor-standing. If a specific partnering amp/preamp are highly desirable (for any reason) please tell me why.

Thanks,

Amit