Amaru sits next to 3 phonetic neighbors — Amaro, Amari, and Amarou are the closest matches by sound. Most share Amaru's Quechua-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sacred serpent, water snake"
"little dark one (from Latin niger)"
"young warrior"
"Aromatic herb, salvia"
"part of the divine light"
"fionn (fair) + laogh (warrior)"
"supplanter (via Jacob/James)"
"noble son"
"the tree of enlightenment"
"moon, born from the moon"
"great, majestic, exalted"
"he laughs, laughter"
"male deer, strong young man"
"meadow town"
"lowland; the low country"
"third son"
"tailor, one who cuts cloth"
"rocky hill settlement"
"cooked rice, meal"
"see, the Lord has seen my misery"
"blond, yellow-haired"
Similar sound: These names share phonetic patterns with Amaru — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Quechua origins, giving them the same cultural heritage as Amaru.
Rhythm: Amaru is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.