Two of them have started crowing. Pic 3 and 4.
That certainly confirms that they are male!
The eggs were sold as
Buff orpington
Cuckoo maran
Light sussex
White leghorn
Araucana
Welsummer.
That may be the breed that laid the eggs (but the father could be some other breed), or the seller may have mixed up which eggs they sent to you, or the seller may have outright lied.
You do not have any Buff Orpingtons. The two with red/brown shades are too dark to be buff, and they both have black markings that a Buff Orpington would not.
You do not have any Cuckoo Marans. The one with black and white stripes has the right color of feathers, but the wrong kind of comb. Marans have single combs. I think your bird has a rose comb, although it might be a pea comb. Either way, it is NOT a single comb.
You do not have any Light Sussex. None of the feather colors is even close.
You do not have a White Leghorn, because Leghorns have white earlobes while your white chicken has red earlobes. I think his body shape is a bit wrong, too.
You do not have any Araucanas, but you might have one or more Easter Eggers (mixed breeds that sort-of resemble Araucanas.) Easter Eggers and Araucana-crosses usually do not have single combs. That could fit the first photo (red & black, comb somewhat small), the third photo (dark colored bird, odd-looking comb, a few feathers on the legs), and maybe the last photo (black & white barred bird).
You do not have any Welsummers. Welsummers have single combs, and the first chicken does not. The other five are very much the wrong color.
(Single comb is what your white chicken has. Your black one and red one also have single combs. The other three do not.)