Devon sits next to 4 phonetic neighbors — Devin, Kevin, and Evan 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"
"stone worker (via Mason)"
"land of purple dye"
"noble, handsome"
"may God give increase"
"priceless one"
"foreigner, Welshman (Celtic speaker)"
"bright"
"one who lives near the fens or marshes"
"messenger (angelos)"
"son of the prince/lord"
"son of Walter"
"son of fire"
"king"
"brook, running water"
"shepherd, one who tends sheep"
"from the River Kelvin, narrow river"
"high place, elevated land"
"home on the wooded hill"
"reborn, born again"
"divine might"
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.