I generally go with trans woman/girl (I refuse to acknowledge that I'm getting older), but mostly because I feel like that broad classification covers a fair amount of what other people would classify as demigirl or transfemme enby. Admittedly I also take the view that gender can be described as a zone of 3-d grid, with axes "femme", "masc" and "other" (although what "other" really is depends on the individual in question), and my own goes 80-90 femme, ~10 masc, 20-30 other (each out of 100)