Speakers Distance from Wall

Looking for floor standing speaker recommendations. Due to the room constraints (fireplace in left corner, patio door in right corner), speakers will be placed appx 4 feet from each side wall and the rear wall, and will have 9 feet between them (though they could be brought closer to each other if it improved the sound. So - what speakers can you recommend that do not need to be situated closer than 4 feet to the side and rear wall? I currently use Adcom equipment -- 5500 Amp; GFP 750 Pre Amp. This is two speaker set up, not surround. I can go up to 3k and am comfortable buying used from reputable source. Thanks in advance for your thoughts on the subject.