What are these chciks? Gender/ breed

[JLM34436]

I have 10 chicks of different ages. I'm afraid I have 5 roosters! I only want one roo so I need help figuring out who to find homes for before it gets crazy lol

 

[nuthatched]

the buff and the red one are certainly boys, do you know what ages they are?

 

[JLM34436]

the buff and the red one are certainly boys, do you know what ages they are?

Yes, sorry. The red is 7 wks. The buff is 5 wks. The barred is also 5 weeks. The others are, I believe, 2 White Leghorn/Ameraucana, and 2 lavender orps they are 3.5 wks.
I know that's young, so I'm more worried about the big ones. The two reds and the definitely roo buff chest bump all day already. The barred is chill but also the smallest of that flock. The 3 wk olds are separate from the rest. The one with rust on the chest is the biggest of them, showing a comb and pushing the rest of em around. I have a second red ee that is definitely also roo.