Black chick identification

[newtochickening]

Does anyone have any best guesses to which breeds these four chickens could be?

Here are some breeds Tractor Supply said they could be:
Appenzeller Spitzhauben, Blue Andalusian, Buff Brahma, Cochin, Columbian Wyandotte, French Black Copper Marans, French Cuckoo Marans, French Wheaten Marans, Midnight Majesty Marans, Olive Egger, Polish Buff Laced, Polish Gold Laced, Polish Silver Laced, Polish White Crested Black, Polish White Crested Blue, Prairie Bluebell Egger, Sapphire Olive Egger, Silver Lakenvelder, Speckled Sussex, Starlight Green Egger, Turken, Welsummer, Americana, Asian Black, Barred Rock, Black Sex-Link, Black Australorp, Jersey Giant, Silver Lace Wyandotte.

 

[HappyClucker7]

The first is a BCM. The last one looks like an australorp. Not sure about the other two. Maybe midnight majesty marans?

 

[JadeFarms]

French BCM and what’s the color of the underfoot of last one.