Amadeus sits next to 3 phonetic neighbors — Amadeo, Amadis, and Amado are the closest matches by sound. Most share Amadeus's German-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"love of God"
"blessed"
"born at dawn, of the light"
"free man, Frenchman"
"honorable, morally excellent"
"rival, eager to excel"
"will, desire, helmet"
"wise as a wolf"
"follower of Christ"
"warlike, martial"
"he who causes distress"
"brave as a bear, strong bear"
"farmer, earth-worker"
"flame, fiery one"
"divine power, God's power"
"YHWH has shown favor"
"well-born, noble"
"born at dawn, bringer of light"
"beloved"
Similar sound: These names share phonetic patterns with Amadeus — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Amadeus.
Rhythm: Amadeus is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.