Vivaan sits next to 4 phonetic neighbors — Vivan, Ivan, and Avaan are the closest matches by sound. Most share Vivaan's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"full of life, rays of the rising sun"
"capable, able, competent"
"in the prime of life"
"blown out, extinguished (of desire)"
"the kind one"
"part of God, divine fragment"
"portion of the storm god"
"strong and excellent"
"first ray of light"
"fortunate, blessed"
"enlightenment, awakening"
"heroism, prowess"
"day, daytime"
"dark blue, indigo"
"little king"
Similar sound: These names share phonetic patterns with Vivaan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sanskrit origins, giving them the same cultural heritage as Vivaan.
Rhythm: Vivaan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.