Blanch sits next to 4 phonetic neighbors — Blanche, Blake, and Branch are the closest matches by sound. Most share Blanch's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"white, fair"
"round, short person"
"Crown, wreath; variant of Stephen"
"weapon, mace bearer"
"modern invented name, phonetic blend"
"chance, fate, the throw"
"divinely favored"
"farm by the fen"
"tax collector, rent farmer"
"hawk-like; stately"
"beloved darling"
Similar sound: These names share phonetic patterns with Blanch — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French blanc origins, giving them the same cultural heritage as Blanch.
Rhythm: Blanch is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.