http://www.npcwomen.org/alumnae-panh.../advisors.aspx Look for Boston.
But your best bet is women you know. Teachers, school counselors, employers, SS teachers, camp counselors, parents of your friends, friends of your parents, etc. Any adult. And she does not have to have attended the school you are attending. Any alum from any chapter will suffice. Make a list of the chapters at the schools to which you are applying. Start asking around. And when you find an XYZ, ask her if she can help with the others. Greek women often know other Greek women. For example, I went to Alabama where there will be 17 NPC groups come this fall. I can get you a rec for all 17 of those groups. And then a couple of more. NETWORK!