Kylen sits next to 4 phonetic neighbors — Kyle, Kylan, and Dylan are the closest matches by sound. Most share Kylen's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"narrow, a strait"
"son of the cloud"
"peddler, pack-horse driver"
"son of Jack"
"one who lives in a valley"
"Viking homeland (Scandinavia)"
"alert, watchful"
"great, powerful"
"descendant of Braonán, tearful one"
"from Mauritania"
"who is like God"
"deep valley dwellers"
"claw of a bird of prey"
"made by God"
"remembered by Yahweh"
"grace of God, king"
"from Denmark, a Dane"
"ruler of all, universal ruler"
"shelter, shield"
"settlement at the inhospitable place"
Similar sound: These names share phonetic patterns with Kylen — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Scottish Gaelic origins, giving them the same cultural heritage as Kylen.
Rhythm: Kylen is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.