First, my biases
: I do not like Goromo as a group. The Hi is usually weak and the overlay of Ai/Sumi too blurry or overwhelming. On rare occasion, there is a fish with deep red pigment accented by Ai that knocks me over, and it qualifies as Goromo, but it might as well be an entirely different variety compared to what is usually produced as Goromo. So, now that you know that I don't like any of them, you can do whatever you want with the thoughts that follow....
I would focus on the body and the Hi. Due to angles and lighting, I do not trust what I see in the photos as necessarily being accurate. They might look quite different in person. I'd suggest to give a close look to the body of the fish in photos 1 & 2. I agree with Marco that #7 and the last one seem to be worth some attention as to their bodies. For pigment, from among these three, #1/#2 and #7 appear to be better reds today, but hard to say. At this size there is a lot of development ahead. I think I would go for the first fish, but maybe that is because the pattern gives it a stronger presence than it would have in person.
Whichever choice you make, let it be one you enjoy. The fun is in what gives you pleasure.