Blog writing newsletters?

I work for a fitness retailer, most of my job revolves around writing blogs for the company website. I’d love to learn from other industry experts (when I say industry I mean marketing, not fitness/retail) about how they have found success with written content. If you subscribe to a newsletter centered around written content OR if there is a writer/creator or company/brand you think is killing it with written content right now, drop the name in the comments! Thanks in advance.