Soul sits next to 4 phonetic neighbors — Cole, Joel, and Sol are the closest matches by sound. Most share Soul's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"spiritual essence, animating force"
"rich, powerful ruler"
"happy estate"
"modern invented name with no fixed meaning"
"whole, healthy"
"falling, rhythmic beat"
"protector of mankind"
"Isle of Skye, Scotland"
"forefather"
"highlands, uplands"
"of the Dorians"
"wave"
"slender, narrow"
"modern American creative name"
"possible Japanese aesthetic: figure, image"
"with melody, melodious"
"cooked rice, meal"
"God has promised"
"creative spelling of Rustin"
"Broken land, marshy area"
Similar sound: These names share phonetic patterns with Soul — 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 Soul.
Rhythm: Soul is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.