Leighton sits next to 4 phonetic neighbors — Layton, Clayton, and Peyton are the closest matches by sound. Most share Leighton's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"herb garden settlement"
"old, wise, of noble birth"
"faith, pledge"
"tile maker (short for Tyler)"
"spear ruler"
"from the marshy plain"
"maiden, heart"
"crow, raven"
"dweller near the heath"
"all wise (from Norse Alviss)"
"long stone settlement"
"peddler, pack-horse driver"
"gift from God"
"cart maker, transporter"
"helmet of will, guardian"
"vigilant in battle"
"dark-complexioned son"
"sky father, divine sky"
"the sound"
"one who has made pilgrimage to the Holy Land"
"well-born, of noble birth"
Similar sound: These names share phonetic patterns with Leighton — 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 Leighton.
Rhythm: Leighton is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.