Rehan sits next to 4 phonetic neighbors — Rayan, Rohan, and Rihan are the closest matches by sound. Most share Rehan's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sweet basil, fragrant herb"
"happy, fortunate, blessed"
"angelic protector, bringer of mercy"
"contentment, satisfaction"
"honorable, reverend"
"complete, whole"
"day, morning light"
"one who reasons"
"the prophet Jesus in Islam"
"protector, guardian, defender"
"famous ruler"
"king of kings, realm"
"servant of the Most Merciful (Allah)"
"small piece of iron"
"steadfast, resolute"
"promised, appointed"
"the right time, opportunity"
"to add, to augment"
Similar sound: These names share phonetic patterns with Rehan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Rehan.
Rhythm: Rehan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.