Elsa sits next to 4 phonetic neighbors — Else, Elsa, and Ella are the closest matches by sound. Most share Elsa's German-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"pledged to God"
"goddess of fate and weaving"
"blood red, vibrant red"
"grace, favor"
"devoted to Paul, little one"
"of the Antonius family"
"my God is abundance"
"dew of the sea (rosemary)"
"of noble kind"
"defender of men"
"child of the moon"
"jovial, cheerful, good-humored"
"star of the sea"
"hunter"
"hope"
"praised, she will be praised"
"mighty in battle"
"sun"
"God is gracious"
Similar sound: These names share phonetic patterns with Elsa — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic/Hebrew origins, giving them the same cultural heritage as Elsa.
Rhythm: Elsa is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.