Here in the UK it used to be recommended to pay the most for the source, followed by amp, followed by speakers on the premis that information lost at the beginning can't be put back later. With the arrival of digital the audible information is all retrieved and low distortion speakers are rarer than low distortion amps, nevertheless I still think some amps which drive a 8 ohm power resistor well fall over when driving variable reactive loads, ie almost all speakers so.My take on the audiophile publication ethic is moderately priced speakers and wildly expensive electronics. It kind of makes me think of photographers who buy low end bodies and pro lenses because the glass has better resale value.
HiFi News reviews do measure speaker distortion at 100Hz, 1kHz and 10 kHz at 90dB/1m. Whilst there have been some low distortion speakers around for decades (Yamaha NS1000M was 0.3% / 0.1% / 0.1%) there are not many, and that is before the effect of dispersion is taken into account.
Obviously efficient speakers are likely to have lower distortion at 90dB at 1m, Klipsch La Scala 0.1% / 0.2% / 0.2% compared with Rogers LS3/5a 1.7% / 0.5% / 0.9%! Though the waterfall plot ofn the La Scala shows a very slow "stop" as with all horns and very uneven FR.
No inexpensive speaker is particularly good, The ATC active SCM100 is 0.2% / <0.1% / 0.1% but £36,083...
The inexpensive Fyne Audio F301 (Fyne Audio is the phoenix rising from the ashes of Tannoy) gets 0.6% / 0.6% / 0.6% at £250 for example.
Mind you there are expensive ones that aren't that low distortion as well:
Focal Grande Utopia EM Evo gets 0.2% / 0.6% / 0.1% for £159,999 and the Wilson Sasha DAW is 0.1% / 0.4% / 0.3% for £39,998 and Wilson Alexia 0.2% / 0.8% / 0.4% for £64,998 for example, this level of mid range distortion is surely not good.
The highly regarded Revel Performa F228Be gets 0.6% / 0.1% / 0.1% for £10,000 here (if you can find a dealer) though. and the Kii 3 gets 3.4% / 0.1% / 0.4%.
I don't find any inexpensive speakers with much less than 0.5% distortion in the mid range, and far more in the bass.