Zaydin sits next to 5 phonetic neighbors — Jayden, Brayden, and Ayden are the closest matches by sound. Most share Zaydin's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"growth, abundance, increase"
"ash tree settlement"
"one who works at the latticed barrier"
"trust, reliance"
"hill, eminence (via Brian)"
"gift of God"
"son of Gregory"
"intelligent, gifted"
"the cleansing one, the rinser"
"modern expansion of Azariah"
"rocky outcrop, tor"
"sword"
"man, manly"
"the Lord is salvation"
"carved by force, shaped by power"
"joyful, jovial (from the same root)"
"of the night"
"descendant of Braonán (moisture/sorrow)"
"descendant of Raghallach"
"rejoice, be happy"
"victory of the people"
Similar sound: These names share phonetic patterns with Zaydin — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Zaydin.
Rhythm: Zaydin is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.