Edison sits next to 5 phonetic neighbors — Addison, Madison, and Ellison are the closest matches by sound. Most share Edison's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Edie (son of Edward)"
"cloud"
"land where rye is grown"
"little warrior, young Mars"
"emperor, caesar"
"son of Aodh (fire)"
"swiftness, fleetness"
"worthy of praise"
"selected, chosen"
"city of God (alternate interpretation)"
"son of Cole, dark one's son"
"slender, bright-headed"
"queen's settlement"
"great forest, eagle valley"
"son of John"
"son of Brice"
"narrow, a strait"
"a narrow road or lane"
"true, faithful"
"stone clearing, rocky glade"
"heathland, open moorland"
Similar sound: These names share phonetic patterns with Edison — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English ead (wealth) + weard (guard) origins, giving them the same cultural heritage as Edison.
Rhythm: Edison is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.