I have run a check on the origin/meaning of given names in norse/celtic
Drake in norse orgin from Drakin meaning the dragon in celtic it has the same but can also mean duck.
Allan in norse orgin from Alan meaning litle cliff (cliff as in rock/mountain) in celtic it has the same but can also mean harmony handsome and kind.
Sure name Herman orgin from H�r(army) Mann(man) meaning armyleader soldier or man of the army both in norse and celtic
All good strong names
My best wiches for you all