Othman sits next to 3 phonetic neighbors — Osman, Uthman, and Othmar are the closest matches by sound. Most share Othman's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"ruler, king"
"help, helper"
"the green one, the verdant, the ever-living"
"light, illumination"
"the rightly guided one"
"praiseworthy"
"noble, high-born, aristocratic"
"guardian, protector"
"great, magnificent, mighty"
"abundance, generosity"
"prince, commander, ruler"
"captivating, fascinating"
"born of (Egyptian suffix)"
"plural of deen (faith)"
"happy, joyful, blissful"
"beauty, adornment"
"well-being, blessing"
"magnificence, nobility"
"skilled, expert, proficient"
"filled with divine grace"
Similar sound: These names share phonetic patterns with Othman — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Othman.
Rhythm: Othman is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.