This video will teach you how to add rich content to posts that are already posted on your blog.
You can add affiliate links, YouTube videos, relevant articles for posts, or basically, anything that the plugins from my portfolio allow you to create (and trust me, they are able to post quite a lot of content, from many sources).

Plugin to achieve this (which can be combined with other plugins):
https://1.envato.market/kraken

▶Portfolio – https://1.envato.market/coderevolution

▶DONT CLICK THIS – https://www.youtube.com/channel/UCVLIksvzyk-D_oEdHab2Lgg?sub_confirmation=1