Beau sits next to 3 phonetic neighbors — Bo, Belle, and Boe are the closest matches by sound. Most share Beau's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"beautiful, handsome"
"fate, that which is determined"
"God is gracious"
"free woman, free person"
"modern invented combination name"
"pure"
"boar meadow, wild clearing"
"unfortunate, ill-omened"
"grace, favor"
"one who plays music"
"goddess of concord and harmony"
"city of history and culture (as a name)"
"bright, radiant"
"to be of worth, valor"
"reborn clearing"
"star"
"fighter, companion in battle"
"evening star"
"free-flowing"
"modern invented name, blue jay bird"
"homestead by the stream"
Similar sound: These names share phonetic patterns with Beau — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have French origins, giving them the same cultural heritage as Beau.
Rhythm: Beau is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.