I'm so glad you brought this up, Kumquat. Thanks!
The two that I know of aren't niche (is that okay?) - Agent Provocateur and Hermes Rouge, and I adore both of them. I was actually surprised by the Hermes - I got it early in 2001, but I had no idea that it was a recent release. I was even a bit miffed at myself for not discovering it sooner, completely assuming it had been around since the 80s.
I really haven't had very much experience with modern, and especially niche fragrances. And when I'm browsing, I always seem to be searching for something that reminds me of my old favorites, probably because most have been discontinued and are almost irreplaceable. I'm finding the task of picking a few samples out of the seemingly infinite number to be overwhelming, so this discussion can really point me in the right direction.
I've jotted down what y'all have already mentioned, and I'm eager to see what everyone else has to add.