Requesting Your Expertise - Best Options - High Sensitivity Speakers For A Smaller Room

As the title says, I am looking into the best options for higher sensitivity speakers for a somewhat small room. The room itself is 12.5 feet by 9.5 feet. The speakers would be placed along the 12.5 foot wall. Amplifier power is 8wpc. 

The system will be used for a variety of music, including folk, instrumental, rock, jazz, and singer songwriter offerings. Budget is a max of $3k, used. And a quality subwoofer, chosen specifically for the room, and use with whatever speakers that I choose, is available to employ.  

I already have some ideas, but, clearly, none of us are aware of everything, and, in the higher sensitivity space, things can get a bit tricky. Your experiences, thoughts, recommendations and expertise would be appreciated in terms of outlining all the worthwhile options available. Thanks.