I still love the "Inappropriate Elf" ones, yes! And all sorts of similar ones that I call AU-but-not-AU where you have a premise that would usually mean AU but the writer threads it through canon such that it isn't. Those are the BEST. I tend to find the ones that do hero/villain reversal really tricky because with those it's sometimes about two millimeters between ones that are really good and ones that are, like, Nazi apologia. But in general, yes, good.

You'd think with the prevalence of "and they were roommates!" and "and there was only one bed!" as the slash cliches these days, finding ones for your daughter would be easier! But I can see how it would be tough especially if you're looking for non-ship-focused ones - I gave up at a young age and just learned to filter the good bits out of the ships, but I didn't know about all the other options at here age. There is AU-Roommates and AU-Neighbors but that doesn't really capture the trope when it really is mostly about sharing spaces. I have gone through phases where I really want, like "AU intentional communities" and those are tough to find too, even in fandoms where "they start a commune together" is a pretty obvious trope.