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"
"child, son"
"vital energy, radiance, vigor, strength"
"John (Hebrew cognate)"
"prince, high-born"
"satisfied, content, quenched"
"honorable, reverend"
"steadfast, resolute"
"announcement, proclamation"
"one who reasons"
"joyful, radiant"
"variant of Caden (battle)"
"to guard, to keep watch"
"one who prevents or restrains evil"
"one who has power and ability"
"noble, princely"
"disciple, devoted follower"
"royal ornament, king's adornment"
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.