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"
"pale, sallow-complexioned"
"noble strength"
"rising, ascending"
"born of the ocean wave"
"one who works with stored grain"
"invented: jay bird + fair (vin)"
"from Sebastia (ancient city)"
"old friend, wise friend"
"bear man, noble bear"
"one who carries the anointed"
"from the high place"
"from the borough farm"
"from the fortress"
"lotus flower, love"
"warrior, fighter"
"from Kansas City"
"descendant of Raghallach"
"son of Flann (red-haired one)"
"elm grove"
"derived from Octavian"
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.