Ottilie said it better than I could have.
Ah, I understand better now. I thought perhaps the "just-in-case" list was going to be kept in reserve in case you look at your newborn son and realize in panic that he doesn't look like an Emrys, Evander, Jasper OR Amias, and in that case you'd fall back on a name you loved which didn't make the Very Top list! Perhaps what you're looking for instead is a list of new names to simmer, which could boil down to an Alternative Top Four list (to be consulted if indeed your newborn son doesn't look like an Emrys, Evander, Jasper or Amias.) Honestly, though, I think you're pretty well covered.
I too think Caedmon is pretty awesome. In an attempt to give you a few more names you've never heard, here's part of a list of handsome rarities saracita00 shared with me (sorry, not in alphabetical order):
Raedanoran (we decided someone should write a novel just to use this name!)
Again, best wishes!