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"
"one who lives near the wells or springs"
"black gemstone; jet"
"kingly, of royal blood"
"battle cry"
"God's spear"
"clerk, scribe, secretary"
"pledge of peace"
"the great river"
"noble"
"modern American invented name"
"long-lived, perennial stream"
"descendant of Bradán (salmon)"
"young dog, whelp"
"behold, a son"
"rich protector"
"one who finishes cloth"
"Brock's town"
"the victorious (Arabic city name)"
"delight, luxury"
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.