Beau sits next to 3 phonetic neighbors — Bo, Joe, and Monroe 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
"handsome, beautiful"
"follower of Christ; anointed one"
"meadow dwelling, water meadow"
"God is gracious (via John, Jack)"
"son of Stephen, crown bearer"
"bright, splendid"
"sawyer, lumber worker"
"great tide, wave"
"the victorious, the conqueror"
"fortunate, prosperous"
"lake colony, settlement by the pool"
"lion"
"loyal as a dog"
"supplanter"
"variant of Jason"
"priest"
"sun, throne"
"homestead by a stream"
"son of Grey"
"divine smith, master craftsman"
"small, humble"
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.