I don't think a striker fire is what you want. As mentioned, you want DAO. My preferred trigger is the H&K LEM, which is DAO, but with a light pull and fairly short reset. No safety, but I am comfortable to carry loaded and hammer down, and light trigger pull allows for accuracy on first (most important) shot.
Why would anyone want a miserable trigger pull for every shot? I agree with the safety of the DA first shot or even deliberately thumbing the hammer like a revolver but a miserable accuracy challenging trigger pull for every shot bites. I have little use for strikers as well as many have no second strike option.