A suggestion… Instruments for entertainers which they can play. Maybe also singers. And you have to put songs and sheets in their inventories. You can find this songs all over the map corresponding to the region and culture.
For example put different instruments to different entertainers and sheets that they play synced. Of corse more then one song, so you can handle your Favorite playlist and favorite instruments.
And special t4 could be singers.
The entertainment dlc 
Edit:
Entertainers that reading books too. Maybe some parts of the real Conan books, which you need to collect to get the whole story.
Also it would be nice if you can put thralls on chairs. It could be just visual thralls like this in benches. Not fighting. Would make t1 and t2 usefull or just as ‘chest’ for currently not needed thralls