Simon sits next to 4 phonetic neighbors — Simeon, Silas, and Cymon are the closest matches by sound. Most share Simon's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"he has heard, God has heard"
"bear, bear-like strength"
"king, ruler, monarch"
"teacher, messenger"
"messenger"
"soldier"
"gift of God, gift of Yahweh"
"glory bright"
"pilgrim to Rome; from Rome"
"the herb sage"
"son of strength"
"one who mills grain"
"wealthy guardian"
"wise protector"
"military commander, war leader"
"jet black; speed"
"Yahweh is God"
"strong-willed, wise"
"people's victory"
"frisky, energetic youth"
"from the western farmstead"
Similar sound: These names share phonetic patterns with Simon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Simon.
Rhythm: Simon is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.