Osmon sits next to 4 phonetic neighbors — Osmond, Osman, and Ozzy are the closest matches by sound. Most share Osmon's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"divine protection; god-protector"
"flower"
"fortunate in battle"
"noble warrior"
"day's light, brightness"
"dweller on the eastern estate"
"woodland spirit"
"beloved, dear one"
"The letter G; an expression of surprise or emphasis"
"pleasant, agreeable"
Similar sound: These names share phonetic patterns with Osmon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Osmon.
Rhythm: Osmon is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.