Raylen sits next to 5 phonetic neighbors — Caelen, Braylen, and Jaylen are the closest matches by sound. Most share Raylen's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"wise protector from the valley"
"dove"
"rowan tree"
"ruler of supernatural beings"
"boundary gate"
"from the surname of poet W.H. Auden"
"rapid water"
"passionate, ardent"
"swift projectile, arrow"
"from the moon"
"companion, friend"
"holy, sacred one of God"
"modern invented name"
"son of Kenneth / son of Coinneach"
"speed, power (modern association)"
"son of the earth-man"
"moonlit, of the moon"
"variant of Alexander (defender of men)"
"God's salvation"
"valley of the hares"
"son of the south"
Similar sound: These names share phonetic patterns with Raylen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic/English origins, giving them the same cultural heritage as Raylen.
Rhythm: Raylen is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.