Shea sits next to 3 phonetic neighbors — Shay, Mae, and Faye are the closest matches by sound. Most share Shea's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"admirable, hawk-like"
"all-encompassing, entire"
"light, bright, shining torch"
"bright, radiant"
"God is my joy"
"lake (suffix -lyn from Welsh)"
"canal, channel, pipe"
"quiet, tranquil, peaceful"
"prosperous, rich"
"steward, manager"
"whole, universal (Emma) + lake/beautiful (lyn)"
"youthful (from Julia)"
"God is gracious, God has shown favor"
"steward, dispenser of provisions"
"noble, nobility"
"graceful jaybird"
"angel, messenger (of God)"
"holy peacemaking, blessed reconciliation"
"Yahweh has shown favor"
"luminous, shining"
"beautiful picture, painted beauty"
Similar sound: These names share phonetic patterns with Shea — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Shea.
Rhythm: Shea is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.