I'm a fan of timlrx/tailwind-nextjs-starter-blog [1]. It's easy to customize, responsive, uses Markdown, and makes use of SSR.
You can deploy it on Vercel [2] for free and then point it to a custom domain using DNS records in the Vercel "Domains" tab.
[1] https://github.com/timlrx/tailwind-nextjs-starter-blog#quick...