What would you say these are from the above list?
First photo, front chick is Dark Brahma (feathered feet.) The color/pattern of the chick down is also different than what any of your other breeds should have (things like the markings on the head and around the eyes.)
Back chick might be a Speckled Sussex (I think I'm seeing little white dots.) Otherwise, since it's clearly got stripes in the down, it could be any of the breeds with striped chicks.
Second photo, it's hard to tell with them all together like that.
The head in the back right corner appears to have Dark Brahma patterning.
The yellow head near the back probably belongs to a French Wheaten Marans (it's growing brown feathers on the body).
Front row, far left, I think is another French Wheaten Marans. (Are those feathers on the feet? I'm having a little trouble telling.)
Front row, 2nd from left, I think is a Splash Laced Red Wyandotte.
Here are a bunch of details you can check to help sort them out.
Combs:
Wyandottes should have rose combs (flat, and wider than other combs.)
Brahmas should have pea combs (wider than a single comb, narrower than a rose comb, may be flat or have little bumps on top.)
All the other breeds should have single combs. I can clearly see a few single combs on some of the striped chicks: they are skinny and stick up with points on the top, like the kind of comb you might use on your hair.
There is a small chance of Wyandotte chicks having single combs too, in which case you'd have to pick them out by color.
Feet: Dark Brahma has feathered feet, French Marans should have a few feathers on the feet, other breeds should have clean feet.
You have several breeds where the chicks are striped like chipmunks:
Brown Leghorn
Cream Legbar
Speckled Sussex
Welsummer
Of those, the Speckled Sussex should grow up to have white dots at the tips of the feathers. Cream Legbars should grow a crest on the head. Brown Leghorn and Welsummer will look very much alike, but by the time they are mature the Leghorns should have bigger combs and a more slender body than the Welsummers do.
Buff Orpington should be a light gold color all over (down and feathers), with clean feet.
French Wheaten Marans may grow different colored feathers depending on whether they are male or female, but the chick down should be relatively light in color, without obvious stripes or markings, and they should have a few feathers on their feet.
Splash Laced Red Wyandottes should grow feathers with splash (light gray or almost white) edges and red middles. The chick down probably has some kind of pattern in it, but in pale shades that might not be obvious.
If you want to have specific chicks identified, try posting individual photos, preferably with numbers or names so it's easy to refer to them. It really helps if you can show the whole body, the feet, and the comb (that sometimes requires more than one photo per chick.)