Recommendations for Echo Dot Speakers?

I just got an Echo Dot (2nd Gen, I think) as a Christmas gift. It’s kind of cool, but the speakers are for crap for playing music. Any recommendations for speakers?

The device itself only costs about $25, and I don’t really want to spend much more than that on supplemental speakers. I’m not an audiophile, but I’d like something that doesn’t sound tinny, and has some decent low end range. I accept that there may not actually be anything worth buying in my price range.

This one is OK. $17 or less for refurb.

Reviews with Echo Dot.