Well, hm. It's nice to have a small stereo where the kitchen table is, if you sit at that table and listen. But that small type of speaker you are looking for and then fill the entire living room with music, .... hm ... Let me be honest. It's just going to be like a pfffff sound of it all. Maybe as an emergency solution if it is the only sound system you can have, just to get some sound in the living room but it will not be more than that.
You can count on slightly different listening distances and volume / dB here and you will realize the challenge.
Feel free to use this calculator. Add sensitivity to the speaker and then tell which effect you have chosen and why. Weigh in that you want some headroom. http://www.mh-audio.nl/Calculators/REAP.html You can select music from this list. Or something else, but in that case tell us how you...
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Amplifiers, speakers that are pressed too hard against their limit for what they can handle sounds bad. Sometimes really bad.
Edit:
Then I have not even discussed the placement of the speakers and how they will sound there on the bench if you are sitting on the couch and listening to music.
If you move around a lot in the living room, then perhaps a pair of omni speakers instead?.