socials

Lambda Chi usually only has socials with KD, APHI, DG, but then also sororities like AXO.
Pike even being the top of the top has a variety of socials with top and middle. KD, APHI, DG, DDD, ZTA, AXO, SK, and GPHI I think had one with them last semester?
Sigma Chi - APHI, DG, KD, DDD, ZTA, AXO, GPHI, SK.
Pi Kapp - They're kind of an upper middle tier frat I would say and actually mix with a variety. I would say probably not APHI or DG but possibly KD, definitely DDD, ZTA, AXO, GPHI, SK, ADPI, and even PIPHI had one with them last semester.

Not sure of DG does socials anymore because of their previous probation but that is what I have gathered from my experience. Honestly it may seem cool to be in a frat that only hangs either top tiers but it honestly is really fun getting to hang with a bunch of different sororities. Just my opinion. Good luck!