Broadcloth is a little heavier than quilting cotton. peronsally, I do not or would not use it. You can find solid in a Kona Cotton. (I don't like using solids, I use tone on tones that "read" solid)
I prefer the cotton batting, such as Warm and Natural for most everything I do.
I have a machine that will do embroidery so I use that for my labels. I have also taken an extra block or so and used a white or off white piece of Muslin or solidy looking fabric and written on it with a Pigma pen. then sewed it on the back.