You're not ready for a red dot yet
I'm going to be direct: asking about red dot carry guns before your draw stroke is solid is backwards. That's gear-first thinking, and it costs money and wastes time.
You're trying to solve an equipment problem when you have a skill problem.
A red dot on a carry gun demands consistency you probably don't have yet. The dot has to be there when you present. If your draw is sloppy, if your presentation angle drifts, if you're still figuring out where your gun prints on your body—a red dot amplifies every mistake. Now you're chasing the dot instead of breaking the sights.
With irons, inconsistency is immediate feedback. You see it. You feel it. You fix it.
What you need: 5,000 rounds through a basic gun with factory sights. Not 500. Five thousand. A solid draw stroke that's repeatable from your carry position. A presentation that gets the gun on target the same way every single time. After that, you'll actually know whether you need a red dot or if you just thought you did.
Then come back. Ask then. The answer will make sense because you'll have the foundation to use it.
Right now you're shopping to avoid the work.