Need Help: Naming and Starting My Substack

Hello! I'm considering starting a Substack but am struggling to come up with a name. I'm undecided about writing anonymously, and my Substack probably won't have a specific theme. I'm not sure whether this is a bad thing. I plan to write a variety of content, from science articles for the layman to alternate history pieces and book reviews. As you can see, my interests are all over the place.

I'm thinking of either using a phrase or aphorism from Latin, French, or German; something incorporating my own name if I decide not to stay anonymous; or something simple like "My Substack," "Musings of a Disillusioned Eukaryote," or "The Anglo-Saxon Tea Drinker."

I'm concerned these names might sound pretentious, and I'm also unsure how to optimize for SEO. Any suggestions or advice for starting would be greatly appreciated. Thank you!