Jalin sits next to 6 phonetic neighbors — Jalen, Jaylen, and Jaylin are the closest matches by sound. Most share Jalin's Modern American (Jalen-derived)-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"invented name; no fixed traditional meaning"
"from Renton, town name"
"name of the sacred river in Arcadia"
"land of the Celtic people"
"resolute protector, determined guardian"
"modern coinage combining 'Da-' prefix with '-quante'"
"the wind, breath of life"
"court officer, legal summoner"
"Beorhtsige's town"
"spirit protector"
"from the east, east settlement"
"modern invented name, combination of Tae and -vion"
"slender, narrow (from Irish Caolan)"
"western settlement"
"modern variant of David"
"handsome, beautiful"
"God is gracious (via Shawn)"
"steadfast, strong"
"red-haired"
"appointed by God"
Similar sound: These names share phonetic patterns with Jalin — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Modern American (Jalen-derived) origins, giving them the same cultural heritage as Jalin.
Rhythm: Jalin is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.