This is the great thing about the format.
Let the data decide.
My atomic newsletter seems like it’s pretty narrow and meta.
(About newsletters)
But the various topics I can cover are really endless.
Landing pages…
Writing tips…
Content generation…
Monetization…
I think you can pick a broad topic and put a unique spin on it.
I know you’ve been doing this online stuff for a while and you’ve got a ton of knowledge in your noggin.
I’d go broad with a topic like “writing for a living” if you can’t decide.
Then narrow your focus as your open rates, click rates, and medium stats dictate what people get excited about.