Atticus sits next to 3 phonetic neighbors — Marcus, Cassius, and Caspian are the closest matches by sound. Most share Atticus's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from Attica, man of Athens"
"son of Kay"
"traverser, one who crosses"
"brave as a lion"
"feller of trees, hewer"
"God is gracious"
"son of Benedict/Benjamin"
"ascended, exalted"
"happy, fortunate"
"son of Cole"
"son of Harry (Henry)"
"son of Hendrik"
"young dog, whelp"
"rich, powerful"
"elf counsel, supernatural wisdom"
"he who descends, descent"
"one who lives near the wells or springs"
"man from South Munster"
"the healer (Iason)"
"peace town; settlement of peace"
"man from Laurentum"
Similar sound: These names share phonetic patterns with Atticus — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin from Greek origins, giving them the same cultural heritage as Atticus.
Rhythm: Atticus is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.