Azul sits next to 3 phonetic neighbors — Azure, Azula, and Azul 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"
"desired, longed for"
"noble, of noble kind"
"bright, clear, famous"
"sparkling, bright as crystal"
"feminine form of Daniel"
"most beautiful"
"of genuine quality, excellent"
"from the elder tree grove"
"helper, protector"
"most holy"
"slender, noble"
"brightness, clarity"
"from Laurentum, crowned with laurel"
"song of joy"
"beloved, calm"
"holly tree"
"light, illumination"
"light, bright, shining torch"
"torch, light"
"modern invented name"
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/Arabic 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.