Ghost
is an open source blogging platform and a great alternative to WordPress and Medium.
You may want to add podcasts, episodes, or playlists to a post on Ghost,
so your audience can directly listen to podcasts right there.
Approach 1: Copy and paste the URL
You can just copy and paste the url of a podcast page (Example),
an
episode page (Example),
a
clip page (Example),
or a Listen Later playlist page (Example)
to the Ghost editor. The url will automatically become an embedded playlist or an episode player.
Ghost interacts with Listen Notes URLs via OEmbed API in order to retrieve all the correct settings automatically and serve podcasts (or episodes, or playlists) in the best way possible.

Image: Embed a playlist to Ghost from its URL.
Approach 2: Copy and paste the embed code for customization
You may want to customize the size of the embedded playlist or the episode player. In this case, you need to use the embed code.
Firstly, on ListenNotes.com, go to the EMBED tab of a podcast page (Example),
an
episode page (Example),
a
clip page (Example),
or a Listen Later playlist page (Example):

Image: Find the embed code under the EMBED tab on any podcast or episode or playlist pages.
Next, on the Ghost editor, click on the HTML button and paste the embed code:

Image: Put the embed code to the Ghost editor.
Finally, customize the code for styling:

Image: Customize style code.
Approach 3: Automatically create a Ghost post from a Listen Later playlist
You may want to create a Ghost post whenever you add a new episode or a new podcast to your Listen Later playlists.
Zapier can help you automate this process.
Firstly, you need to create a custom integration on Ghost:

Next, create a Zap (RSS feed to Ghost) on Zapier.
Set Trigger to "New Item in Feed" and set Action to "Create Post in Ghost":

Finally, specify how will a Ghost post look like.
You can easily select data fields from a Listen Later playlist's RSS feed:
