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"
"modern constructed name"
"of God, elevated"
"long-lived, one who lives long"
"wild cow"
"supplanter, one who follows"
"belonging to God, of God"
"a short novel, fictional narrative"
"one's own meadow, solitary clearing"
"little rock, harmony"
"ornament of God, God has adorned"
"dry (from Greek azaleos via Azalea)"
"beautiful"
"one strength, unique strength"
"for all time, eternally"
"free, community-minded spirit"
"white, pure"
"new beginning, new light"
"little rock, steadfast"
"highest order angel"
"promised by God"
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.