Melo sits next to 4 phonetic neighbors — Mellow, Milo, and Mel are the closest matches by sound. Most share Melo's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"melodious, pertaining to song"
"of the sea (via Marius)"
"light"
"gift of God"
"nobleman, member of the patrician class"
"mythic bird of rebirth and renewal"
"eternal"
"phonetic rendering of initials J and C"
"short form of Linus or Paulino"
"very handsome, beautiful"
"kingly, of the king"
"love"
"gift of Artemis, devoted to Artemis"
"God has promised"
"God is gracious, YHWH is merciful"
"fruitful, fertile"
"gate attendant, herald"
"wise protector"
Similar sound: These names share phonetic patterns with Melo — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Melo.
Rhythm: Melo is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.