Lexa sits next to 5 phonetic neighbors — Alexa, Lexie, and Lexi are the closest matches by sound. Most share Lexa's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"defender of mankind"
"heavenly sea"
"beautiful, graceful (invented name with aesthetic meaning)"
"helmeted chief, armored head"
"each of the two (variant etymology)"
"Not married to the prince; chaste"
"possibly inspired by Paisley (a Scottish town)"
"From the land of the Aryans"
"Mythical guardian: part eagle, part lion"
"judged by God, under divine judgment"
"magical letter, written symbol"
"agreement, concord, fitting together"
"consistent, reliable presence"
"golden, bright yellow"
"servant of God"
"joyful, playful"
"flood princess"
"garland of flowers (from Hawaiian Kalei)"
"inquiry, knowledge (from Greek historia)"
"moonlight"
"honorable, respectable"
Similar sound: These names share phonetic patterns with Lexa — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Lexa.
Rhythm: Lexa is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.