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