Trenton sits next to 4 phonetic neighbors — Benton, Denton, and Brenton are the closest matches by sound. Most share Trenton's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Trent's town, settlement on the Trent"
"famous land"
"famous spear"
"of Mars, warlike"
"lawful, true to one's pledges"
"gift, wealthy possessor"
"fisherman"
"powerful ruler of the home"
"son of the army ruler"
"spiritually reborn through baptism"
"powerful ruler"
"descendant of Madan (little dog)"
"son of Bron"
"Gomeric's mountain, power mountain"
"maker of cases or boxes"
"case, container (via Old French)"
"known by God"
"Yahweh has created"
"power, strength, ruler"
"protector of mankind"
"ruler of the army (Scandinavian form)"
Similar sound: These names share phonetic patterns with Trenton — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Trenton.
Rhythm: Trenton is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.