Safwan sits next to 4 phonetic neighbors — Sufyan, Safyan, and Saffron are the closest matches by sound. Most share Safwan's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"pure, clear, smooth rock"
"unconquerable, invincible"
"worshipper of Allah"
"new, fresh, novel"
"one who sees, observer"
"all, without gaps"
"brave and powerful warrior"
"Lion"
"exalted, high mountain"
"non-dual, without a second"
"Noble, of high lineage"
"grace, elegance"
"young king, crown prince"
"son of the prince (elaborated form)"
"exalted father"
"noble, truthful father"
"conqueror, winner, one who overcomes"
Similar sound: These names share phonetic patterns with Safwan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Safwan.
Rhythm: Safwan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.