Like all speakers, desktop or otherwise, it is highly personal taste. I could recommend the Qacoustics 3010 I used (and love) with my UQ2 but then you might hate them.
Instead, I would offer different advice.
Pay attention to whether the speaker is good with a rear wall or not if your desk is against a wall. I don’t care what anyone says, a rear ported speaker even with a bung in won’t be great close to a wall.
Budget for desk stands. The improvement in quality from getting desktop speakers away from the reflective desk surface cannot be overstated. I use adjustable Konig & Meyer stands which cost more than my speakers. But I’ll totally stand by statement that a $180 pair of speakers on really good $200 desktop stands will outperform a $400 speaker plonked on a desk.
I have Neat Iotas running off a UQ1 as a second system, due to siting issues they’re well away from a rear wall, and close together (on iso l8r stands either side of the TV. They fill the room fine, if obviously bass light. I also swapped then into my main system and they’re not disgraced by my SX3s. Worth a listen definitely, but they’re a lot more than the Q Acoustics option you mention, even SH.
[edit: when I sit up close to them their imaging strengths really come out, I do think that’s a particular strength of them]
I have Spendor SR5s mounted on the wall (wall mount design) relatively near-field with a Naim n-sub directly under my desk. Nothing quite like near-field bass and nice haptic feedback via the feet.
I used to own b&w lm1. nice speakers though i felt that it was noisy - due to plastic cabinet? not sure if it was problem with the ones I owned as i bought them used.
I hear the b&w m-1 is a step above the lm1. But apparently bass-less.
I was also curious about the b&w xt2 when they came out - which is based on similar aluminum construction as the m-1 but bigger.
