If you have space to the front wall the Audience 1 + 1 is good (owned it). There is a Magnaoan desktop speaker that is also good and needs similar space up front.
The Audioengine A2+ is not that great but easy to move. I have this in the house but not plugged in anymore.
I doubt any small speaker will sound as good as the RAAL SR1a headphones. I have about 20K of gear to play these headphones, but you can also use the following $800 amp.
Schiit Audio: Audio Products Designed and Built in California
When I switch from my 2-channel to the RAAL late at night I do not feel as if it is a step down. Another compliment I can make is that they do not sound like headphones. I am not a fan of the sound of traditional headphones.