Emrys sits next to 4 phonetic neighbors — Ambrose, Emery, and Emris are the closest matches by sound. Most share Emrys's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"immortal, not mortal"
"earthly, of the earth"
"spear, battle"
"pear tree"
"ravager, one who destroys"
"lion"
"sea"
"elf warrior"
"God is good"
"little king"
"leader, lord"
"from the River Kelvin, narrow river"
"Gomeric's mountain, power mountain"
"poet, bard"
"wolf counsel (via Old Norse Ralph)"
"small, junior"
"seeing clearly, sharp-sighted"
"great one"
Similar sound: These names share phonetic patterns with Emrys — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek via Welsh origins, giving them the same cultural heritage as Emrys.
Rhythm: Emrys is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.