Brighton sits next to 3 phonetic neighbors — Braxton, Britton, and Bryton are the closest matches by sound. Most share Brighton's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"bright homestead, bright town"
"son of Hays, hedged area"
"holy, sacred one of God"
"page boy, herald"
"hard grey quartz, fire-making stone"
"fallow land, meadowland"
"maker of cords and ropes"
"lawful, proper"
"great happiness"
"God is gracious"
"large homestead"
"dear, beloved"
"bold counsel, brave advisor"
"brown, chief"
"chief, brave man"
"modern American creation"
"resolute fame, desired renown"
"son of Madoc, fortunate"
"happy estate"
"invented blend of Jared and Gareth"
"creative modern variant of Ashton/Cashton"
Similar sound: These names share phonetic patterns with Brighton — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English Beorthelm's tun origins, giving them the same cultural heritage as Brighton.
Rhythm: Brighton is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.