The first one yes, appears to be a Light Brahma.
The second one is an Easter Egger -- hatcheries sell them as EEs, Ameraucanas, or Araucanas, and all the misspellings, but they are EEs. They are kind of like a "mutt" chicken, usually with muffs and green/slate colored legs. Most lay colored eggs -- either blue, green, olive, or some lay pink or brown eggs.
The third is a BSL pullet.
The fourth could be an EE without muffs....
Fifth is a Light Brahma.
6 and 7 both appear to be Black Australorps, unless the bottoms of their feet are yellow. If they are, then they are Black Jersey Giants.
If they are 9 months old then they should be laying eggs by now if they are all pullets (which they appear to be). Do you have any updated pictures?