Ahahahahah, oh glory...
It has to sing to you and make you want to dance. Seriously. If the music doesn't speak to you, you're not going to interpret it very well.
Have you considered Artistic/Interpretive/Improvisation? Personally, I love interpretive/artistic best, as the focus is on the quality of the basic skating and interpretation of the music rather than the tricks/jumps/spins, etc. It could be a way of working out what sort of thing you'd like to skate to when you feel you've got the technical elements up to a comfortable standard.
The following anecdote does relate to music choice. Honestly...
I used to suffer from appalling stagefright and once skated out when my name was called, only to have a complete blank. A total and utter blank. Could not remember what I was supposed to do and just stood there, like a terrified rabbit in the headlights. It was one of the worst experiences of my skating life. My coach said that it would never happen again and I would know my programme inside out, back to front and in the dark for the next season. We (well, she) picked music I liked and she choreographed an excellent routine to it, which I went along with, despite a feeling of dread. When she went away for a week's holiday, two weeks before the first competition of the season, I fell apart and declared that I was withdrawing from the competition. In order to cheer me up, my training buddy put some random music on the rink system and we just messed around to it, with him remarking that it was a shame I couldn't just go out at the competition and make it up as I went along, as my skating flowed when I did that...
Later that day, I was listening to some music I'd found that I thought would be great for some friends' free dance (the Ted Heath version of Peggy Lee's "Fever", as vocals weren't allowed in the time before Noah) and it occurred to me that if I knew the music backwards and the elements I had to put in, then surely I couldn't actually "go wrong"...?
So that's what I did. Yes, I had an idea of what I was going to do, and I'd worked out the starting position and moves up to the "all-important" first jump (if it went wrong, I could just do it again later) but then I just went with the flow and enjoyed myself. I did get all the required elements in and had a great time. And I went from last place the previous season up to 7th, with the highest artistic mark in the competition.
The point of that lengthy rambling is that in order to skate to your best ability, you really need to love that music and to enjoy performing to it and interpreting it for others to enjoy. Because that really shows through. And, frankly, if you don't love it, what's the point? Especially as adults, when we're not after Olympic glory.
Don't write off anything as unsuitable until you give it a try. Watch every John Curry video you can find, because he nailed it. And enjoy the process. Skating and music go hand in hand and are joyous when you get the connection right. I can't hear a piece of music without choreographing something in my head, but some pieces are just crying out to be used. Dream a bit.