Preston sits next to 3 phonetic neighbors — Treston, Weston, and Easton are the closest matches by sound. Most share Preston's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"priest's town, priestly settlement"
"son of Owen"
"crooked nose"
"little fawn"
"dark one, black"
"homestead by a stream"
"famous warrior, renowned in battle"
"mounted warrior, horseman"
"of the gens Lucia (light)"
"bold warrior"
"son of the king"
"sun"
"tortoise (alternative Japanese reading)"
"free man"
"protector of mankind"
"my messenger, my angel"
"strong ruler, powerful leader"
"from the bridges"
"cheerful settlement"
"friendly, allies, friend"
Similar sound: These names share phonetic patterns with Preston — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Preston.
Rhythm: Preston is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.