Kanon sits next to 4 phonetic neighbors — Cannon, Canon, and Caanan are the closest matches by sound. Most share Kanon's Japanese cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"flower sound"
"settlement in the brushwood"
"goodness of God"
"noble, nobility"
"short form of Cameron or Camden"
"powerful ruler, brave leader"
"indivisible, uncuttable"
"gift of God, gift of Yahweh"
"modern American name"
"one who throws, thrower"
"warrior of life"
"payment, brow, forehead"
"legendary warrior (fictional)"
"young person, noble youth"
"light, bringer of light"
"great one"
"letter Z sound"
"diminutive of Hugh (heart, mind)"
"from Dax, France"
"sun"
"of Rudolf Diesel; fuel-powered engine"
Similar sound: These names share phonetic patterns with Kanon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Japanese origins, giving them the same cultural heritage as Kanon.
Rhythm: Kanon is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.