Way to organize posts into groups, like a series/playlist

I made a quick picture to demonstrate how there could be a way to search through a User's blog posts by Tags

For many established steemers it will help their visitors interested in perhaps a certain type of topic sort through all the variety of blog posts.
Or lets say I specialize only in photography and have 100 post under this tag alone. I could have some posts on tutorials, equipment reviews, photoshoot sets. It would be nice to be able to group them into playlist as well.

Here's a youtube playlists screen that could serve as inspiration: