mastodon.online is one of the many independent Mastodon servers you can use to participate in the fediverse.
A newer server operated by the Mastodon gGmbH non-profit

Server stats:

11K
active users

Dr. Rachel Reddick

Meanwhile, in I've read lately: The Very Secret Society of Irregular Witches. Pleasant, cozy story with characters who're easy to like. My only quibble is that they couldn't fix the big systemic background problem, but hey, it's not that kind of story.