I kinda like the ETC ColorSource Spot Junior for dance lighting. Inexpensive to run in multiples; the non-standard gobo slot is a bummer, though, and they're on the weaker side of bright. Decent for dance studios without much light to compete with; but I'd rather use a full size CS Spot or a Lustr for a larger stage.
The most common request i used to get from visiting dance companies on our 40ft. Wide stage was a 36 deg. S4. My low side towers all were 36, 2 as low shins, 2 as head highs.
I have tried 50 degree fixtures but they don’t have the punch I like and make it impossible to have lanes without shuttering down past where I would have cut a 36 degree. As for light source, Colorsource spot or Chauvet Ovation E-910FC are good. I am really waiting to see both ETCs and Chauvet’s new fixtures are like before upgrading our booms, I want a great LED light.