Ava and Alice are my favourites. Alice could be nn Allie, best of both worlds, but I wouldn't use Allie as a stand alone name.
Isla is ok.
Emmie is cute, which is half the problem. She won't be a baby forever. Emma, Emily, Emilia or Emmeline, nn Emmie, are all nice but no adult is going to want to be 'Emmie'.