Arranging music for the harp
Here is a video from Tiffany Schaefer. She has great ideas about arranging, and as you can see, this video is not her only video about arranging. This is a longish video, but it is not fluffy or wordy, just tons of great ideas. And the ideas are illustrated with music, to make them more clear and understandable than just reading about the topic.
Even though there are many songs out there already arranged for harp, there are still so very many that have not. I think it would be fun to arrange a song every month, even just one. Then at the end of the year you would have a dozen favorites ready to play.