I kept most existing 3 permanent rivals except for wake /georgia tech as it felt like one than was forced.
I did a quick 1st attempt at 4 perm rivals for each and this is how it turned out:
( NEW)
Clemson- Fsu, Georgia Tech, NC State, ( SMU)
Florida State-Clemson, Miami, Syracuse, ( GT)
North Carolina- Duke, Nc State, Virginia,(WAKE)
Nc State- Unc, Duke, Clemson, (Wake)
Miami- Fsu, Bc, Louisville, (VT)
Georgia Tech- Clemson, Duke, Louisville, ( FSU)
Duke- Unc, Nc State, Wake, (GT)
Wake- Duke, VT, (UNC, NC STATE)
Virginia Tech- Virginia, Pitt, Wake, ( MIAMI)
Virginia- Vt, Unc, Louisville, ( STANFORD)
Louisville- Virginia, Miami, Gt, ( SMU)
Pitt- Bc, Syracuse, Vt, ( CALIFORNIA)
Syracuse- Bc, Pitt, Fsu, ( CALIFORNIA)
Boston College- Pitt, Syracuse, Miami, ( STANFORD)
Stanford- (California, Smu, Bc, Virginia)
California- (Stanford, Smu, Pitt, Syracuse)
SMU- (Stanford, California, Louisville, Clemson)