Alexy sits next to 4 phonetic neighbors — Alexis, Alexa, and Lexi are the closest matches by sound. Most share Alexy's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"defender, helper"
"Slavic/Russian form of Helen meaning light"
"entertaining companion; one who delights through conversation"
"Yahweh remembers"
Similar sound: These names share phonetic patterns with Alexy — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Alexy.
Rhythm: Alexy is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.