Welcome to ourselves.space, a mastodon compatible service that's well relayed and available for free to the fediverse. You can sign up here and then access it with the fediverse app of your choice.
If you'd like to host your own single user (or a few) instance account for your domain (for example: [email protected]), please visit here for instructions. You can also reach us at support(at)thedoodleproject.com any time!