I know an
Alaina and an
Elena, and their names sound pretty much the same - ah-LAY-na and eh-LAY-na, but the eh- is almost ah- in her case.
Elena was born in Russia, so her name is Russian. She was adopted pretty young so i can't guarantee this pronunciation is Russian.
Alaina is my sister. We live in the USA.
I would probably pronounce
Helena to rhyme with those two names, and would pronounce Elaina as ee-LAY-na, but know no one by either name to confirm this with. I do know
Alaina gets her name mispronounces and sometimes misspelled this way often, which is why i am of the opinion they are pronounced differently.