A: Hello

with Astra Hooks you can insert custom codes or shortcodes in various hook locations, Internal Linking Related Contents plugin is totally different, this plugin put one or more related post inside your contents, based of the category or tag of the current post.

Content Snippet Manager plugin (available on AppSumo) is similar to Astra Hooks but you can insert multiple scripts inside the whole website or only inside specific contents

Hope it helps

Best regards

Alex