Joelle sits next to 3 phonetic neighbors — Joel, Noel, and Cole are the closest matches by sound. Most share Joelle's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Yahweh is God"
"old friend, wise friend"
"messenger goddess"
"God strengthens, strength of God"
"gift of Yahweh"
"the new house"
"heather-covered hill"
"edge of a shield"
"one million million (10^12)"
"my lord"
"born on All Saints Day"
"to be worthy"
"sky-inspired modern coinage"
"son of Benjamin"
"son of God-peace"
"messenger of God"
"slender, narrow"
"hitting the mark, fortunate"
"salvation of the Lord"
"settlement by ash trees"
Similar sound: These names share phonetic patterns with Joelle — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Joelle.
Rhythm: Joelle is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.