Rayyan sits next to 3 phonetic neighbors — Ryan, Rayan, and Rahman are the closest matches by sound. Most share Rayyan's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"lush, well-watered, abundant"
"God will hear"
"dark, black (dark blue)"
"the prophet Jonah"
"all-knowing, judicious"
"manifest, apparent, visible"
"Yahweh has remembered"
"lion, brave warrior"
"land of purple, merchant"
"elegant, attractive"
"God has heard (via Samuel)"
"builder, one who populates"
"generous, good fortune"
"moistening, life-giving water"
"ancestor of northern Arab tribes"
"moon"
"Yahweh is my God"
"steadfast, determined"
"my God is Yahweh"
"skilled, expert, proficient"
"merciful, compassionate"
Similar sound: These names share phonetic patterns with Rayyan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Rayyan.
Rhythm: Rayyan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.