Viva sits next to 5 phonetic neighbors — Eva, Vivian, and Ava are the closest matches by sound. Most share Viva's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"alive, living"
"gift of God"
"woman from France"
"from Brittany, a Breton"
"new, fresh start"
"meadow near the river"
"torch, shining light"
"noble, of noble kind"
"beloved, cherished"
"meadow, woodland clearing"
"pearl, beloved"
"life (from Eva + creative suffix)"
"little lake"
"luminous, brilliant"
"slender, thin"
"you will always be loved"
"noble natured"
"beautiful"
"each of the two (uncertain etymology)"
"female heir, inheritor of wealth"
"to conquer, victorious"
Similar sound: These names share phonetic patterns with Viva — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Viva.
Rhythm: Viva is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.