Welp, I've finally shed the last vestiges of Gmail from my email communications. Feels good.
@ezrayun I've dabbled with Proton Mail in the past, but they seem to want to centrally control my PGP key. Posteo has that option as well, but I can manage my own through my mail client. Perhaps I could do that with Proton as well, but I just didn't bother looking into it. I went with Posteo on a recommendation.
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.