Get into public finance (joooooin usssssss) - those financials are all over the place, and they’re free.
Also, it doesn’t intersect with your day job. Every time something from my day job as a topic intersects my “extracurricular” interests, I pretty much can’t write about it for my blog.
Of course, public finance behaves very differently from insurance financials, but that’s an opportunity! You get to learn something new!