We are working on an integrated blogging system for our platform. However, it is still in development and is scheduled for release in our 4th quarter update in late October.
In the meantime, I recommend you use a free blogging platform like https://www.blogger.com. Once you create your free blog on Blogger, you can link to it from your SitesGPT website using text links, adding to header and footer menu, or edit an existing button on your site to link to your blog URL. Another way to promote it is to add a floating widget with a button that says “OUR BLOG” or something like that. You can use this platform to create the widget which will hover at the bottom corner of your website. Create the widget here: https://elfsight.com/button-widget/templates/floating-button/
Hopefully that helps.