Bell sits next to 4 phonetic neighbors — Belle, Bill, and Dell are the closest matches by sound. Most share Bell's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"handsome, fair"
"Noble, patrician (via Patrick)"
"Exclamation of triumphant discovery"
"Yahweh saves"
"peaceful ruler"
"merciful, gracious"
"noble, of noble birth"
"home ruler"
"farm garden, upper estate enclosure"
"dwelling place"
"writer, creator of works"
"slender; narrow passage"
Similar sound: These names share phonetic patterns with Bell — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French bel origins, giving them the same cultural heritage as Bell.
Rhythm: Bell is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.