9mm - Help me pick one

I’m in a local where I can only own a single handgun per caliber. I’m currently looking for a 9mm.

Since I can only have one there are no restrictions on budget. I have a few feature preferences:

DA/SA

Optics ready

Metal frame

Reliability and accuracy are priorities.

Size is irrelevant as carry is illegal here.

All suggestions are welcome so if you feel like there’s an argument for a polymer striker would be superior please let me know.

Thanks!