This list of academics on Mathstodon is somewhat useful:

https://github.com/nathanlesage/academics-on-mastodon

But it doesn't list mathematicians or physicists.  It *does* list "theologidons".  What's a theologidon?  A don who is a theologian?

https://media.mathstodon.xyz/media_attachments/files/111/130/653/904/409/192/original/6dfb6c698e1fcd99.png