Personally, I'd absolutely love to hear more about Iridium. I've always found her to be a really fun character.

Ooh, some good choices here! A and B are my favourites, but I do like a bit of D - and E sounds kind of interesting...!

I've gotta vote for Jack, as much as I love Haru.

Well, I'm not quite sure if its definitely what you're looking for, but this might be of interest?

www.furaffinity.net/view/43729243/

Thanks for the chance!