Eryan sits next to 5 phonetic neighbors — Erin, Aryan, and Ryan are the closest matches by sound. Most share Eryan's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"little king, kingly (from Ryan)"
"God has helped, divine helper"
"thornbush clearing"
"the clove spice, nail-shaped flower bud"
"fisherman"
"bright, radiant"
"small, little"
"place of happiness"
"home, house-maker (via Mason/Maison)"
"Variant of Theia; Greek Titan goddess of sight and the sky, mother ..."
"friend; ally"
"lover, sweetheart"
"lake colony settlement"
Similar sound: These names share phonetic patterns with Eryan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish origins, giving them the same cultural heritage as Eryan.
Rhythm: Eryan is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.