Tech Blogs - Open-source collection of tech blogs.
GitPress - A blog writing tool based on GitHub, designed for developers
Promotehour - Free list of 1100+ media outlets to pitch your startup
HubPress - A free, open source tool you can use to build a blog using GitHub Pages and AsciiDoc. HubPress is a web application that makes it easy for you to maintain a blog.
TheSeoLabs - Find news guest post opportunities with more than 15 000 Blogs that accept guest post, with contact information and SEO metrics.
Sairin - You can one-click deploy a blog on Vercel that fetch blog posts from your GitHub repository's issues.See https://blog.sairinjs.com/introducing-sairin for more details.