fraternity sorority pairings

Trying to compile a comprehensive list of any of the frats that will exchange, at least sometimes, with sororities. The frats listed first exchange more often with the sorority than the ones listed last. If you guys think this is inaccurate, just fix it in the comments.

Kappa- SAE/Zete, KA, DKE, Fiji?, AEPi

Pi Phi- SAE/Zete, DKE, KA, Fiji, Sigma Chi, Phi Psi

APhi- DKE, ATO, KA, Sigma Chi, Phi Psi, Fiji, SAE/Zete, Delta Chi, Pike, Chi Phi

DG- Sigma Chi, KA, SAE/Zete, Fiji, Delta Chi, Pike, Phi Psi, ATO

ChiO- ATO, Phi Psi, Sigma Chi, KA, Delta Chi, Pike, Phi Tau, Chi Phi, AEPi, Theta Chi, Pi Kapp, TKE

ADPi- Sigma Chi, Pike, Phi Psi, KA, Delta Chi, Chi Phi, Chi Psi, TKE

SK- Delta Chi, Pike, Phi Psi, ATO, Phi Tau, Chi Phi, AEPi, Pi Kapp, Theta Chi, Sigma Nu

Zeta- Theta Chi, TKE, AEPi, Phi Tau, Chi Phi, Chi Psi, Pi Kapp, Sigma Nu

Delta Sig- TKE, ATO, Chi Psi, DU, Phi Tau

Tri Delt- Theta Chi, Sigma Nu, DU, Phi Tau

Theta- TDX, Sammys, Aqua Delt, Sigma Pi, KDR

AXO- DU, Phi Tau, Sammys, TDX, Aqua Delt, Sigma Pi, KDR

Gphi- Phi Delt, Sammys, KDR, Sigma Pi, Aqua Delt