Devon sits next to 4 phonetic neighbors — Devin, Devo, and Devon are the closest matches by sound. Most share Devon's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"deep valley dwellers"
"noble, of noble kind"
"good race, noble kind"
"alive and well"
"prosperous, flourishing"
"fair, lovely"
"thanksgiving to God"
"reborn"
"God is gracious"
"dedicated to Mars"
"highborn, noble"
"born in May; spring child"
"pearl"
"weary, tired"
"honor, glory"
"laurel, victory"
"bright, shining light"
"brilliant and pure"
"variant of Kaylee (pure)"
"home ruler (variant)"
Similar sound: These names share phonetic patterns with Devon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Celtic origins, giving them the same cultural heritage as Devon.
Rhythm: Devon is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.