I have tried to pick some potential NHL comps for the top names (minus the goalies). First, these are just stylistic comparisons. Second, I am not great at picking the best NHL comps...so I picked two for each.
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NCAA Free Agent Tiers
TIER I:
Collin Graf, RW, Quinnipiac (ECAC)
TIER II:
TIER III:
Dylan Anhorn, LHD, St. Cloud State (NCHC)*
Drew Bavaro, RHD, Notre Dame (Big Ten) -- signed by BOS
Jacob Bengtsson, LHD, Boston College (Hockey East)
Zach Bookman, RHD, Merrimack (Hockey East)*
Riese Gaber, RW, North Dakota (NCHC)
Luke Grainger, C, Western Michigan (NCHC)
TJ Hughes, C, Michigan (Big Ten)
Jacob Quillan, C, Quinnipiac (ECAC)
TIER IV:
Karsen Dorwart, C, Michigan State (Big Ten)
Christian Fitzgerald, C, Wisconsin (Big Ten)
Justin Hryckowian, C, Northeastern (Hockey East) -- signed by DAL
Colton Huard, RHD, New Hampshire (Hockey East)*
Joey Larson, RW, Michigan State (Big Ten)
Ondrej Psenicka, RW, Cornell (ECAC)
Gabriel Seger, C, Cornell (ECAC)
Dylan Wendt, RW, Western Michigan (NCHC)
Jared Westcott, LW, Lake Superior State (CCHA)*
Jack Williams, RW, Northeastern (Hockey East)*
TIER V:
Dalton Bancroft, RW, Cornell (ECAC)
Josh Eernisse, RW, Michigan (Big Ten)
Luke Haymes, C, Dartmouth (ECAC)*
Carter King, C, Denver (NCHC)
Luke Krys, RHD, Providence (Hockey East) -- signed by DAL
Liam McLinskey, C, Holy Cross (Atlantic)*
Jaxon Nelson, C, Minnesota (Big Ten)
Carter Wilkie, RW, RIT (Atlantic)
TIER VI:
Lynden Breen, C, Maine (Hockey East)
Tim Lovell, LHD, Arizona State (Ind)*
Mason Marcellus, C, Quinnipiac (ECAC)
Sam Morton, C, Minnesota State (CCHA) -- signed by CGY
Evan Murr, RHD, Minnesota State (CCHA)*
Jack Musa, LW, Mass-Amherst (Hockey East)
Josh Nadeau, RW, Maine (Hockey East)
John Prokop, LHD, Union (ECAC)*
Garrett Schifsky, C, Michigan (Big Ten)
Ben Steeves, LW, Minnesota-Duluth (NCHC)*
TIER VII:
Boston Buckberger, LHD, Denver (NCHC)
Christian Felton, RHD, Merrimack (Hockey East) -- signed by VAN
Andre Ghantous, RW, Northern Michigan (CCHA) -- signed by NJD
Matteo Giampa, RW, Canisius (Atlantic)*
Bret Link, RW, Colorado College (NCHC)*
Ryland Mosley, LW, Michigan Tech (CCHA)
Nash Nienhuis, LHD, Michigan State (Big Ten)
Luke Rowe, RHD, Air Force (Atlantic) -- signed by LAK
Luc Salem, LHD, St. Lawrence (ECAC)*
Lukas Sillinger, C, Arizona State (Ind)*
Sam Stevens, C/W, Boston University (Hockey East)
Austen Swankler, C, Michigan Tech (CCHA)
Simon Tassy, RW, Wisconsin (Big Ten)
Pito Walton, RHD, Northeastern (Hockey East)*
TIER VIII:
Matthew Barbolini, C, Miami (NCHC) -- signed by TOR
Brandon Chabrier, RHD, Maine (Hockey East)
Mathieu Gosselin, RW, Clarkson (ECAC) -- signed by TOR
Aiden Hansen-Bukata, LHD, RIT (Atlantic)
Chris Hedden, LHD, Air Force (Atlantic)*
Case McCarthy, RHD, Boston University (Hockey East)
Patrick Moynihan, RW, Notre Dame (Big Ten) -- signed by Chicago (AHL)
Nick Poisson, C/W, Providence (Hockey East)*
David Silye, C, Wisconsin (Big Ten)
Lleyton Roed, LW, Bemidji State (CCHA)*
Travis Treloar, C, Quinnipiac (ECAC)
Gleb Veremyev, C, Colorado College (NCHC)*
Jeremy Wilmer, LW, Boston University (Hockey East)
TIER IX:
Nick Anderson, RHD, Colgate (ECAC)*
David Andreychuk, LW, Yale (ECAC)*
Joey Baez, RW, Army (Atlantic)*
Jacques Bouquot, C/LW, Penn State (Big Ten) -- signed by PHI
Scooter Brickey, RHD, Ohio State (Big Ten) -- signed by PIT
Gianfranco Cassaro, LHD, RIT (Atlantic)
Spencer Cox, LHD, Miami (NCHC)*
Brenden Datema, RHD, Canisius (Atlantic) -- signed by NSH
Mathieu De St. Phalle, RW, Wisconsin (Big Ten)
Liam Devlin, LW, New Hampshire (Hockey East)*
William Dineen, LW, Yale (ECAC)*
Jacob Guevin, RHD, Nebraska-Omaha (NCHC)
Lukas Gustafsson, LHD, Boston College (Hockey East)
Kyler Head, LW, Mercyhurst (Atlantic)*
Matthew Kopperud, F, Arizona State (Ind) -- signed by NYI
Kyler Kupka, LW, St. Cloud State (NCHC)*
Jayden Lee, RHD, Quinnipiac (ECAC)
Ian Murphy, RW/C, Princeton (ECAC)*
Joe Palodichuk, LHD, Wisconsin (Big Ten)
Kristof Papp, C, Northern Michigan (CCHA)*
Jack Randl, LW, Nebraska-Omaha (NCHC)
Anthony Romano, C/RW, Clarkson (ECAC) -- signed by DAL
Ryan St. Louis, LW, Brown (ECAC)*
Ryan Siedem, RHD, Notre Dame (Big Ten)*
Hunter Strand, C, Notre Dame (Big Ten)*
Cristophe Tellier, LW, Quinnipiac (ECAC)
Marshall Warren, LHD, Michigan (Big Ten)
[* season has ended]
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Possible expiring rights names to watch...
TIER III
Alex Campbell, LW, Northeastern (Hockey East) (PHI)
TIER IV
Hunter McDonald, LHD, Northeastern (Hockey East) (PHI) -- AHL deal with PHI
Alex Jefferies, LW, Merrimack (Hockey East) (NYI) -- AHL deal with NYI
Mike Koster, LHD, Minnesota (Big Ten) (TOR)