Azul sits next to 3 phonetic neighbors — Azure, Azuul, and Azu are the closest matches by sound. Most share Azul's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"blue"
"noble, honorable"
"the strong one"
"devoted one"
"praised one"
"my God is Yahweh"
"God is gracious (via Hebrew Yeshua)"
"one who is complete"
"merciful, compassionate"
"whole, complete"
"letter Z sound"
"worthy of praise, easy living"
"of the Lucianii family"
"grandfather"
"lotus flower"
"wounded in the thigh"
"luxuriant, full of life"
"sublime, magnificent"
"grace, kindness"
Similar sound: These names share phonetic patterns with Azul — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Spanish from Arabic lazaward origins, giving them the same cultural heritage as Azul.
Rhythm: Azul is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.