Beauregard sits next to 3 phonetic neighbors — Beaumont, Bellamy, and Beau are the closest matches by sound. Most share Beauregard's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"beautiful gaze"
"sun"
"one who heals"
"honorable"
"building material, beam"
"from Laurentum, laurel"
"sword people, stone-knife people"
"from Britain, a Briton"
"place by the wide ford"
"of the Caspian Sea"
"flowing river"
"desired, longed for"
"clever, astute"
"crown, wreath"
"God is salvation (via Joshua/Hebrew connection)"
"variant of Mason (stone worker)"
"one who cuts cloth or stone"
"from the wealthy estate, prosperous settlement"
"Brock's town, badger settlement"
"good valley"
Similar sound: These names share phonetic patterns with Beauregard — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have French origins, giving them the same cultural heritage as Beauregard.
Rhythm: Beauregard is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.