Best Desktop Speakers under $500

I am on my second set of Klipsch Pro Media 2.1 speakers.  For $129.00, I haven’t heard a better desktop speaker. 

I'd consider these.

https://www.accessories4less.com/make-a-store/item/kefq150wln/kef-q150-5.25-2-way-bookshelf-speaker-...

If you like the VA sound these are a bargain, not much bass though.  I significant step up in quality than new speakers at this price.
https://www.ebay.com/itm/304132125228?_trkparms=ispr%3D1&hash=item46cfaff22c:g:LgQAAOSwPnthMlyS&...

Audioengine makes a line of passive and active speakers in that budget and style.

I tried their small actives and was unimpressed. I like fine detail in the top end and these were too smooth. My very old Wharfedale Diamond 6 sound much clearer.

As I am unable to make my “desktop dream setup” a reality (Croft Integrated & Harbeth P3ESR), I’ll have to live with my current set up.

Minimus 7 speakers (I upgraded the crossover to the Ziltch circuit) and once I’m done rebuilding it, a 4 watt EL84 based Heathkit SA-3 integrated will be driving them. 
As it stands, these ridiculously inexpensive speakers sound far better than they should. There is a reason why these cheap little things have such a cult following. The xover mod made a night and day difference.

Not fatiguing in any way, shape or form.

Aside from the questions about powered/passive etc,  , how much real estate do you have for the speakers? Footprint, both real and visual, may have some limitations.