Shelton sits next to 5 phonetic neighbors — Sheldon, Dalton, and Colton are the closest matches by sound. Most share Shelton's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from the ledge farm, shelf settlement"
"goodness"
"old friend, wise friend"
"independent, nonconformist"
"bright, splendid"
"dear friend, beloved companion"
"related to Kimani: full of life"
"bright, enlightened"
"hay valley, from the hay hill"
"from Vinci (a town in Tuscany)"
"good change, virtue through transformation"
"from Sebastia"
"from the Brazos River, Texas"
"the third (in family lineage)"
"good speech"
"holly tree"
"born of the ocean wave"
"graced by God"
"word, principle"
"Yahweh has remembered"
"beloved of Yahweh"
Similar sound: These names share phonetic patterns with Shelton — 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 Shelton.
Rhythm: Shelton is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.