Now at present times there is none.
But it would be a great edition to the Steemit Platform.
My personal blog here runs a wide range of topics, because my interests, passions and career does. But this sends your audience on a whirlwind and sometimes they leave as you may post one of their interests (that they found and signed on to), every 4 days... really difficult for audience retention.
However if you have many interests it is difficult to coral into one topic, at the same time you want to develop different blogs within your blog.
If Steemit had Playlists
For my personal use I am into Health, Finance (Gold, Silver, Digital), Self Protection, Art... and other topics that I post as well as support here. But if you visit the blog it goes from one to another and this may loose people that came for another topic... it also makes it so people do not see your focus in each or bookmark your page for a reference on a topic.
Tags
Yes we have tags and categories set up in a general way, but I thing (like on YouTube), the authors should be able to playlist their blogs as well. It would also bring in those that work in this way on Wordpress, YouTube and other popular social internet programs.
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Image Credit: playlistconverter, tagmybuddy
Would be very nice to see this happen.