Pearce sits next to 3 phonetic neighbors — Pierce, Piers, and Reece are the closest matches by sound. Most share Pearce's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"rock, stone"
"settlement of Ella's people"
"from Hesston (place name)"
"variant of Cassius, ancient Roman gens name"
"corner, nook"
"Derived from Alfred, meaning counsel of elves"
"who is like God? (rhetorical, meaning no one)"
"dark red, crimson"
"modern invented combination of grey + len"
"place of elms"
"high, exalted"
"modern invented name with melodic sound"
"born of the ocean wave"
"diminutive of Hobart"
"resolute, bright"
"invented: jay bird + fair (vin)"
"experienced in rule"
"he will judge"
"to shout, to sing joyfully"
"forest meadow"
Similar sound: These names share phonetic patterns with Pearce — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek via Latin origins, giving them the same cultural heritage as Pearce.
Rhythm: Pearce is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.