Fake NPCs for a story, need advice!

[lyrica9]

I've decided to write a novel-style story about a girls first year rush/membership experience. I spent the last few hours making up some fake NPCs because I dont want to worry about misrepresenting any groups or making them look bad.

I came up with about 48 groups, and I haven't decided if they will all make the cut as national groups, but I'll figure that out later. What I need help with is chosing the groups that are going to be on the campus I'm writing about. Its going to be a hugely greek school, so I'll probably have half of these groups on the campus. I know most of these names have probably been used by some sort of group at some point in the history of greek life, but my main concern is to not infringe on any group that is well known nationally now. even though this story will probably not leave the confines of my notebooks, i want pretty unattached names.

so basically i want advice on which groups should be on campus X. tell me which you like/dont like, and if there is a group by that name i should know about.
thanks!

(all phi's and xi's are pronounced fie and zie unless otherwise noted.) my list:

Alpha Delta Sigma
Alpha Gamma
Alpha Gamma Alpha
Alpha Lambda Delta
Alpha Mu Gamma
Alpha Sigma
Alpha Sigma Delta
Alpha Sigma Phi
Alpha Xi Phi (pronounced zee)
Alpha Zeta

Beta Kappa Delta

Chi Nu
Chi Phi Epsilon
Chi Tau Kappa

Delta Beta
Delta Chi Omicron
Delta Delta
Delta Kappa Zeta
Delta Tau Upsilon

Epsilon Delta

Gamma Gamma Gamma
Gamma Gamma Iota
Gamma Kappa

Kappa Delta Zeta
Kappa Phi Phi
Kappa Tau Omicron
Kappa Zeta

Lambda Mu Nu
Lambda Pi

Mu Nu Xi

Omega Kappa Nu
Omega Omega Omega

Phi Delta Xi

Pi Beta Chi
Pi Chi Omega

Sigma Chi Alpha
Sigma Delta
Sigma Epsilon Pi
Sigma Phi

Tau Beta Omega

Theta Mu Sigma
Theta Sigma
Theta Xi Theta

Xi Delta Gamma
Xi Xi Xi

Zeta Nu
Zeta Pi Sigma
Zeta Sigma


semi-unrelated note: i also made some fraternities, mostly they're names i thought didn't feel feminine enough, which sounds silly.
Epsilon Upsilon Nu
Beta Tau Epsilon
Tau Chi Epsilon
Gamma Pi Sigma
Delta Alpha Tau
Chi Chi Psi

anyway, i'd appreciate any input, thanks!!