How Would You Build a SaaS Blog Today? (Ghost, WordPress, MDX?)

We're planning our new SaaS blog and could use some advice on the tech stack.

What's the best way to build a blog these days for good SEO and an easy workflow for writers?

We're debating between a CMS (like Ghost/WordPress), building it directly into our app, or a simple static site (MDX). How did you build yours? Curious to hear what you'd recommend!

Also, for early-stage SaaS products still in MVP phase, what setup would you recommend to keep things simple but still SEO-friendly? Is it better to start scrappy with MDX or Notion + super.so-style setups, or go straight for a Headless CMS if we plan to scale content quickly?