Yeah, seems like they go really early - Fantilli may have some of that as a pro since he does a lot of "through" instead of "around" in his game - and plenty of teams mess up their pick around 6-10 with guys like Virtanen, Kassian, Beach, Boucher, and Dylan McIlrath or Duncan Siemans on defense or as you point out, they are guys outside the first who put it together (Knies for Toronto vs. Boucher for the Sens). It seems like it's hard to find from the later part of the top 10 down into the 30's.
Maybe Meier and Crouse (though he was panned at the time before being moved and finding his game in Arizona) in 2015 but since then it's been pretty barren at the top of things.