Triston sits next to 3 phonetic neighbors — Tristan, Tristian, and Preston are the closest matches by sound. Most share Triston's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"tumult, riot"
"knowing God"
"possible Japanese aesthetic: figure, image"
"nautical term for reducing sail area"
"son of Paye/Pace (son of Peace)"
"man, warrior"
"strength and help of God (combined from Ezra and Azariah)"
"beloved of the sea"
"Ruler of the army"
"Geirrapos island, grassy island"
"modern coined name, Z + sound"
"champion (Irish-inspired)"
"acquired, possessed"
"of the Dorians"
"son of Japheth, ancestor of Greeks"
"little seal"
"settlement by a church, church village"
"church, one who lives by a church"
"God is my strength"
"home ruler, power"
"God is gracious"
Similar sound: These names share phonetic patterns with Triston — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Celtic/Pictish origins, giving them the same cultural heritage as Triston.
Rhythm: Triston is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.