Evan sits next to 4 phonetic neighbors — Ivan, Owen, and Ewan are the closest matches by sound. Most share Evan's Welsh cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious"
"full of goodness"
"to flow down, descend"
"son of Stephen, crown bearer"
"flowing body of water"
"light, bringer of light"
"From Old French 'macon' meaning one who works with stone; originall..."
"soldier"
"strong as a lion"
"short form of Jason, the healer"
"messenger"
"brave, lion-hearted"
"one who glorifies God"
"who is like God?"
"conqueror, winner"
"pilgrim to Rome; from Rome"
"from the western farmstead"
"from the long ridge"
"gift of God; Yahweh has given"
"strong, powerful"
Similar sound: These names share phonetic patterns with Evan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh form of John origins, giving them the same cultural heritage as Evan.
Rhythm: Evan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.