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"
"Yahweh saves"
"pledged to God"
"peaceful ruler"
"slender; narrow passage"
"merciful, gracious"
"Noble, patrician (via Patrick)"
"writer, creator of works"
"farm garden, upper estate enclosure"
"Exclamation of triumphant discovery"
"dwelling place"
"home ruler"
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.