K 141 is generally well recieved by the audience.
It's also more difficult than most of Chopin's etudes. Not sure it's suitable for somebody who is looking for "sad songs" by Scarlatti.
But for the sake of the other person who said they were also looking contrasting sonatas by Scarlatti, I would like to recommend just one Sonata which will contrast with nearly any other, given that it is one of his very rare and underappreciated fugues. Here is K. 417/L. 462:
It is a very enjoyable one to play; not as finger-twisting as it sounds and the voicing is very straightforward. Somebody else mentioned K. 450; this is another of my favorites, although as opposed to the fugue, K. 450 is actually much
harder than it sounds, just as a warning. There aren't any good recordings of 450 on piano, but here is an OK one. It is acceptable interpretation to truncate the trills to fermati, and not play them baroque (i.e. not thirds trills, and not that I suggest doing either!), but it is still a bit wonky to play, at least for me:
And as a closing remark, it should be mentioned, just in case it isn't clear, that Scarlatti is leagues more difficult than anything Bach wrote. Fair warning, if you're picking Scarlatti
instead of Bach.