Amaia sits next to 3 phonetic neighbors — Amara, Amaya, and Maya are the closest matches by sound. Most share Amaia's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"high place, elevated ground"
"soul"
"strong, healthy"
"circuit, rolling hills region"
"peace, tranquility"
"lily flower"
"dark, rich (possibly referring to the dark Adriatic waters)"
"goddess of spring and growth"
"divine messenger"
"heaven, the sky"
"house of bread"
"sea and sun"
"glory, fame"
"defender, helper"
"fragrant vine"
"little eagle"
"famous in battle"
"protector of men"
"crown, garland"
"gentle, agreeable"
"shining upon man"
Similar sound: These names share phonetic patterns with Amaia — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Basque origins, giving them the same cultural heritage as Amaia.
Rhythm: Amaia is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.