Does you university have alumni music functions? Reunion at TMEA etc.
Is there a community band you can find time to play in that has numerous directors involved?
Volunteer for ANY duty at region meetings. Ex. I counted ballots at the state atssb meeting one year. I met a lot of new people. Does you TMEA region have a music library...you can administer it and meet directors.
Does your region need people to be librarians or organizers for all region groups? This is a great way to meet many directors.
Call, email, contact the various people in charge of those functions prior to the region meeting. When I did it that way, they would simply say “we need someone to be middle school all region band organizer and Mr. ——— said he would do it. All in favor say aye.”
Just a few ideas, but just put yourself in positions to meet others. Don’t just wait for the region meeting and approach directors awkwardly because that’s how I first attempted to connect. Eventually a mentor gave me advice to “work in service to meet in a comfortable way”.