Harshiv sits next to 4 phonetic neighbors — Harish, Hardev, and Harshit are the closest matches by sound. Most share Harshiv's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"happy devotee of Shiva"
"rays of the sun; life-giving"
"pleasant, beautiful"
"complete, whole, the only one"
"light, brightness"
"all-pervading, the preserver"
"courage, determination, bravery"
"the musical note Re (second note in sargam)"
"spiritual wisdom"
"king, ruler"
"brave portion, embodiment of heroism"
"sky, heaven"
"innate, born-with quality"
"beautiful, elegant one"
"end of the Vedas (the Upanishads)"
"pursuit of knowledge"
Similar sound: These names share phonetic patterns with Harshiv — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sanskrit origins, giving them the same cultural heritage as Harshiv.
Rhythm: Harshiv is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.