Quan sits next to 4 phonetic neighbors — Juan, Kwan, and Khan are the closest matches by sound. Most share Quan's Chinese cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"official, mandarin"
"gentle, tame"
"young, heir (alternative)"
"opening, window of light"
"may God give increase"
"little king, kingly"
"God saves"
"handsome, beautiful"
"strong-willed warrior"
"light-bearer"
"God has heard"
"combined family name element"
"wealthy protector"
"settlement on the heath"
"ascending, rising"
"royal power"
"gift of God"
"reputation, legacy"
"ruler of the world"
"to await the stars"
Similar sound: These names share phonetic patterns with Quan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sino-Vietnamese origins, giving them the same cultural heritage as Quan.
Rhythm: Quan is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.