Pearl sits next to 4 phonetic neighbors — Perl, Perle, and Purl are the closest matches by sound. Most share Pearl's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"precious gemstone formed in oysters"
"scholar, learned one"
"bright, shining one"
"shining torch"
"free man, free person"
"little Laura"
"place name: the Netherlands region"
"new, fresh, pure"
"beloved, little Mary"
"invented name; possibly related to 'life'"
"cherished, dear one"
"wise"
"to give thanks, thankfulness"
"of the forest"
"counsel, protection"
"God is gracious"
"a narrow path or road"
"beloved child"
"one who carries goods"
"grace, favor"
"one who works the earth"
Similar sound: These names share phonetic patterns with Pearl — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Pearl.
Rhythm: Pearl is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.