Just created an international linguistics starter package. Includes linguists (all languages) and (English-speaking) linguistic institutions on Mastodon.
If you speak German you might also want to follow the package "Linguistik-Institutionen im DACH-Raum"
In case you are not yet included and would like to be added, let me know! (There are some accounts who commented, that I couldn't add because of their account settings)