I love Basque names. Some of them are so lovely and light, and some of them look like a mouth full of marbles. I like that many of the names have nature meanings, and I like Basque forms of common European names. Of the ones you listed, my favorites are
Maialen (LOVE),
Ainara,
Esti,
Eder,
Erramun, and
Iñaki. I also like:
AlaiaAmaiaIratiIzarKatalinMirenNaiaNerea
BeñatIbaiJulenPetri
*****
And last of all an Admiral came,
A terrible man with a terrible name,—
A name which you all know by sight very well;
But which no one can speak, and no one can spell.
Robert Southey, "The March to Moscow"