I think it should be left entirely up to the parents (they'll be lucky) as after all the child is theirs.
My son and daughter-in-law had twins in December 2018... My wife and I wondered what they would choose for names - we managed to keep quiet
Delighted with the choices - maybe not what we expected but who can predict. Best of luck to all new parents - not an easy choice the results of which a child has to live with for a very long time