Maybe you could do a podcast or a talk show? You could discuss the music you've posted, new releases, what's hot and what isn't, the state of the music industry in general. To add a more personal touch to that podcast, you could ask your viewers to post questions, things they'd like to hear your opinion on, etc.
Getting the message out your viewers could be tricky though. A lot of people usually just opens the video and switch to another tab. The only effective way you could get the message to your viewers that I could think of right now is through annotations that pops up at the very first second on your videos. Alternatively, you could make videos of your own that's exclusively for podcast-related stuff, where you can announce things and people can submit their questions/etc.
Another idea is to do weekly music reviews. You could post your reviews and/or reactions to new albums being released, and involve your viewers by asking them for suggestions on what to review next.
My last idea is to make your own charts. Personally, I love the style of the official weekly Billboard Top 10 videos. You'll definitely have to do some research to avoid copyright strikes, though. You can base the charts on whatever you like: personal taste/your own current favorites, the tracks getting the most views/engagement on your channel right now, viewer-voted chart (where they vote by commenting a song title, and the song with most votes/comments is #1) etc. The viewer-voted chart is my personal favorite for these Youtube charts, because not would it add a more personal touch to the channel, it would also help your channel by increasing the audience engagement!
I hope you find at least some of my suggestions to be useful.
P.s: I love your YouTube icon! It's adorable.