Channon sits next to 4 phonetic neighbors — Shannon, Cannon, and Shannen are the closest matches by sound. Most share Channon's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"old river; slow-flowing water"
"boar strength, hardy"
"very white, very fair"
"dark foreigner; dark stranger"
"craftsman, carpenter"
"dawn, morning"
"fire and blood (fictional Valyrian)"
"noble estate"
"from the valley"
"an extremely large, uncountable number; boundless"
Similar sound: These names share phonetic patterns with Channon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish/Celtic origins, giving them the same cultural heritage as Channon.
Rhythm: Channon is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.