Updating my list to reflect Thursday's and Friday's results:
Locks (34 total) (latest additions in bold):
ACC (7): Louisville, Notre Dame, Florida St, Duke, NC State, Syracuse, Miami
Big 12 (2): Baylor, Texas
Big Ten (7): Ohio State, Maryland, Iowa, Michigan, Minnesota, Rutgers, Nebraska
Pac-12 (5): Oregon, UCLA, Stanford, Oregon St, Arizona State
SEC (7): Mississippi St, South Carolina, Missouri, Tennessee, Georgia, Texas A&M, LSU
AAC (2): UConn, South Florida
Big East (3): DePaul, Marquette, Villanova
Horizon (1): Green Bay
That would leave at most 6 at-large bids for the following bubble teams
(could be fewer if a "non-lock" team wins a conference tournament):
Bubble teams (RPI ranking in parentheses)
ACC: Virginia (35), Virginia Tech (67), Georgia Tech (68)
Big 12: Oklahoma (29), Oklahoma St (48), West Virginia (66), TCU (75)
Big Ten: Indiana (55), Purdue (61), Michigan St (65)
Pac-12: Cal (45), USC (51)
SEC: none
AAC: UCF (44)
Big East: Creighton (47), St. John's (71)
MAC: Buffalo (16), Central Michigan (23), Ball St (34)
Summit: South Dakota St (33), South Dakota (58)
Others: Dayton (30), Princeton (32), Gonzaga (36), Northern Colorado (38), Quinnipiac (42), FGCU (56)
I believe the leading contenders for the final 6 bubble spots are Oklahoma State, Virginia, Indiana, and Cal.
I also think that Buffalo and Central Michigan are very much in the mix, but their situations are very different and I have no idea what the committee will make of whichever of them doesn't win the MAC tournament.
South Dakota State—with wins over NC State and Oklahoma and no bad losses—also has a relatively strong at-large resume.