I like
Maialen as well! I really like how it looks. On a side note, I also like
Madeleine (perhaps more than
Magdalene).
I forgot about
Balendin, it’s really handsome. It kinda gives off a more... feel than
Valentin, if that makes sense.
Asier is pretty interesting, too, and
Naia is cute - it sounds a bit trendy, though, like another Maia/Maya.
I’m not sure if
Aramis can be considered Basque or not. Though the origin of the name is clearly Basque, I don’t think the name itself is used in Basque communities. Or maybe it is, I dunno.