HubSpot blog post and blog listing page templates are coded files. You can add some drag and drop modules that will be reflected across both of these templates, but most other changes must be done in a coded template file. If you need help customizing your HubSpot blog, you can find design partners on the HubSpot Partner Directory.
In your HubSpot account, navigate to Marketing > Website > Blog.
In the upper left, click the blog dropdown menu and select a blog to update.
In the left sidebar menu, click the More tools dropdown menu and select Manage blog template.
In the layout editor, click the Blog Content module.
In the module inspector under the Post templatessection, click Edit post template or Edit listing template.