Joel sits next to 3 phonetic neighbors — Joe, Noel, and Cole are the closest matches by sound. Most share Joel's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Yahweh is God"
"my God is the Lord"
"fire of the Lord"
"son of the young warrior"
"short form of Jason, the healer"
"gracious, mild"
"From Hebrew 'Yaakov'; the biblical patriarch who wrestled with an a..."
"one who walks"
"son of Carr (marsh dweller)"
"Yahweh has been gracious"
"courageous, valiant"
"male, masculine"
"from the wetlands"
"little king; descendant of the king"
"dark one, black"
"free man, freeholder of land"
"red-haired, ruddy complexion"
"descendant of the red-haired one"
Similar sound: These names share phonetic patterns with Joel — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Joel.
Rhythm: Joel is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.