Good question, Travis! I'm looking for the same in the Atlantic City area.
In the L.A. area, there are several FB groups for Airbnb hosts. We also have socials for meet and greet. Not sure about other markets-- bu you could always start one. FB has cheap prices to promote your group or group post targeting certain geographical or demographics.
Working together, we have had some successes in fighting short term housing regulations.
I'm looking for the same in the Atlantic City area.
I have also had another host in my neighborhood reach out to me via a listing inventory. We both gained valuable info from that interaction - and new friend as well.
Best of luck,
Pat