Bryan sits next to 5 phonetic neighbors — Brian, Ryan, and Byron are the closest matches by sound. Most share Bryan's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"little seal"
"peaceful, gentle"
"Yahweh remembers"
"strife, quarrel"
"greatest"
"modern American invented name"
"advice, counsel"
"God will raise up"
"messenger, herald"
"son of Kyle"
"to live, to dwell"
"descendant of the dark one"
"money box, treasury"
"son of Lawrence"
"helpful; assistant; descendant of the helpful one"
"variant of Jason"
"honoring God"
"homestead by a stream"
"title of honor, great one"
"at the ash tree"
Similar sound: These names share phonetic patterns with Bryan — similar vowel sounds, consonant clusters, or rhythm.
Rhythm: Bryan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.