Havana sits next to 3 phonetic neighbors — Savannah, Hannah, and Avana are the closest matches by sound. Most share Havana's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"port, harbor"
"God will increase, God will add"
"pure (as variant of Katarina)"
"southern town, southern settlement"
"little rock, harmony"
"my God is abundance, consecrated to God"
"gracious, favored"
"little rock, harmonious"
"gift of God's grace"
"alder tree settlement"
"speckled, freckled"
"wonderful, marvelous"
"star, radiant one"
"from Amabel, dear one"
"noble woman"
"light, bright"
"my God has answered"
"goddess of concord and harmony"
"king of birds (folklore)"
"riverbank dweller (from riparia)"
Similar sound: These names share phonetic patterns with Havana — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Spanish/Taino origins, giving them the same cultural heritage as Havana.
Rhythm: Havana is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.