I love it. It was my favorite boy name for ages.
A few of the combos I have:
Malachi FrancisMalachi Fisher
Malachi Beltran
Malachi RafaelMalachi AugustineMalachi HamzaMalachi Hart
Malachi ParisI don't think it's "too biblical." Biblical names are all over the place, and names are getting "less biblical" every day.
Noah's in the top 20 now and that used to be a very non-mainstream name.
Malachi is getting more popular every year (easily in the top 200 now).
I love the sound, of course.
And nns:
Kai, Mac, Mal, Mally...But I prefer just
Malachi.