Tavish sits next to 4 phonetic neighbors — Travis, Hamish, and Angus are the closest matches by sound. Most share Tavish's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"twin"
"faithful, loyal"
"initials name, no fixed meaning"
"noble ruler"
"see, the son"
"a fast-moving projectile, symbol of speed and ambition"
"to heal, to cure"
"royal enclosure"
"meadow, pasture (possible alternate)"
"divine judge"
"winding homestead"
"little warrior"
"courageous, valiant"
"man of the olive tree"
"curly-haired"
"prosperous ruler"
"chromium element"
"claw of a bird of prey"
"silver-wheeled (sky goddess)"
Similar sound: These names share phonetic patterns with Tavish — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Aramaic via Scottish Gaelic origins, giving them the same cultural heritage as Tavish.
Rhythm: Tavish is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.