Jayce sits next to 5 phonetic neighbors — Jace, Jacey, and Jade are the closest matches by sound. Most share Jayce's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"healer"
"God will add"
"star"
"lake, pool"
"born of fire, handsome"
"bright-headed"
"shoreline, where land meets sea"
"my God is an oath"
"lame"
"raven"
"spirited, dashing, energetic"
Similar sound: These names share phonetic patterns with Jayce — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Jayce.
Rhythm: Jayce is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.