Adon sits next to 4 phonetic neighbors — Aidan, Aden, and Adam are the closest matches by sound. Most share Adon's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"lord, master, ruler"
"my God is the Lord (Yahweh)"
"son, child"
"Yahweh is God"
"fish, abundance"
"thunder of God"
"of God, divine man"
"God is gracious"
"praised"
"who is like God? (rhetorical — no one is)"
"God perceives"
"diminutive of Ronald (ruler counselor)"
"God will teach, God's light"
"sun, sun-like"
"may Yahweh give increase"
"father of many"
"creative variant of Isaiah"
"clear, clean, acquitted"
"healer"
"divine promise"
Similar sound: These names share phonetic patterns with Adon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Adon.
Rhythm: Adon is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.