@adlobel
Great question, I am looking for this as well. It seems that although any of us can contact and read our Jwitter equivalents here, the fragmented, federated approach of Mastodon makes it harder for us to discover each other.
There's no general search function that covers all "instances" (Mastodon servers) yet.
I've read that the best way for us to find each other is through using hashtags.

#Jewish #Jewisheducators #rabbis #Hebrewschoolteachers (and what else?)