Luqman sits next to 3 phonetic neighbors — Lokman, Lukman, and Luqmaan are the closest matches by sound. Most share Luqman's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"the one who swallows (alternative etymology)"
"all, without gaps"
"interpreter, teacher"
"softness, tenderness"
"lake of the sage Kashyapa (Sanskrit etymology)"
"guardian, protector"
"one who judges justly"
"rich, prosperous (folk interpretation)"
"goodness, beneficence"
"praised one"
"excellent, distinguished"
"perfect, complete"
"full, satisfied, quenched"
"young king, crown prince"
"father of many nations, father of a multitude"
"new, fresh, novel"
"the auspicious act of seeing the divine (darshan)"
"beautiful, graceful"
"friend of God (theological use)"
"beautiful, adornment"
Similar sound: These names share phonetic patterns with Luqman — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Luqman.
Rhythm: Luqman is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.