Vishnu sits next to 3 phonetic neighbors — Vishwa, Krishna, and Vishal are the closest matches by sound. Most share Vishnu's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"all-pervading, the preserver"
"divine ease, spiritual absorption"
"joy, song of life"
"morning light, first rays"
"connected, one who follows"
"auspicious, pure"
"rule, kingdom, sovereignty"
"beloved portion"
"single portion, one part"
"one who follows the divine path"
"man, virtuous person"
"share of the brave"
"happy devotee of Shiva"
"victorious hero"
"spiritual wisdom"
"alive, full of life"
"brave, heroic"
"free-flowing, vital energy"
Similar sound: These names share phonetic patterns with Vishnu — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sanskrit origins, giving them the same cultural heritage as Vishnu.
Rhythm: Vishnu is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.