Santa sits next to 4 phonetic neighbors — Sana, Shanta, and Shanty are the closest matches by sound. Most share Santa's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"holy, saint"
"peaceful, calm, shelter"
"healthy and wide"
"God is my judge"
"little bear, she-bear"
"Marian devotion + floral beauty"
"tropical climbing plant"
"noble kind, of noble birth"
"shining one"
"pledge, surety"
"Yahweh is gracious"
"vigilant, watchful"
"star"
"graceful, full of favor"
"noble, honorable"
"dew of the sea"
"resolute protector"
"miraculous one"
"short form of Cleopatra"
Similar sound: These names share phonetic patterns with Santa — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Santa.
Rhythm: Santa is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.