Some names that may be signed by NHL teams in the coming weeks, in no particular order.
Tom Gorowsky, F, Wisconsin, 23
Dion Knelsen, F, Alaska-Fairbanks, 21
Carter Hutton, G, UMass-Lowell, 24
Chay Genoway, F, North Dakota, 23
Darcy Zajac, F, North Dakota, 23
There doesn't seem to be a hot commodity out there, like there is occasionally. Generally college free agents get overrated though. They are already 23 or 24 when the come out, which is near the top of the development curve. They won't improve much once they are signed. What you see is pretty much what you get.
Simon Gysbers and Casey Wellman already went to Toronto and Minnesota.