If you want to make changes to a single blog post on WordPress, there are a few different ways to go about it. You can use the built-in editing tools or you can use a third-party plugin.
The WordPress built-in editing tools include the WYSIWYG (What You See Is What You Get) editor, which gives you an easy way to make changes to your text and formatting. You can also use the built-in commenting system to allow other readers to leave feedback on your post.
If you want to use a third-party plugin, there are a few options available. One option is the popular W3 Total Cache plugin, which helps improve the performance of your WordPress blog.
Other popular plugins that can be used for editing blog posts include Yoast SEO and Advanced Custom Fields.