I'll vote for a P365 or an XD. I'm not sure if you left the Sig off the list intentionally, and if so, why, but it's a personal preference. I love mine as much as my child.
I'm going out in left field here as I don't currently own one, but I voted for the XD series. Here is why, you said your first double stack. My guess is you haven't owned a ton of them or any in the past. Being it's your first, go cheap. When I said cheap, I mean price, not quality. You can find XD series weapons all over used for under 3 bills. Most will come with a metric ton of mags, holsters etc. Not a huge fan of the trigger, but it's combat ready and will do in 99% of all situations. The M series are very accurate too. Metal sights, non grooved trigger, metal mags and proven.
For what Springfield offers in the XD series, it's hard to beat for the price. You honestly can purchase the weapon, go out and shoot and do not need any upgrades.
I'm actually going to suggest the Beretta APX. It's in the low to mid $300 range these days. Admittedly, I have not shot one, however everything I hear on them is positive. If I was in the market for a striker fired pistol, it would be on the top end of the list. If you aren't apposed to hammer fired, take a solid look at the PX4 Storm, too.
Love my Beretta APX Centurion! However, my EDC is a P365.
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