The Beretta PX4 was mentioned a couple of times. You might not find it for rent, because they aren't terribly common for some reason, but it is a pistol worth considering. My daughter has a compact 9mm and it is a very impressive pistol, very accurate, extremely soft shooting, with very nice fit and finish.
I have no real gripes about the entries on your starting list, mind you, but consider that you are looking at a variety of trigger/safety mechanisms. Deciding on that first may help you in narrowing your choices down.
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