Ronin sits next to 4 phonetic neighbors — Roman, Ronan, and Rowan are the closest matches by sound. Most share Ronin's Japanese cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"masterless samurai"
"greater, superior"
"from the rocks"
"peace, complete"
"wisdom, good sense"
"fallow land, uncultivated land"
"opportunity, happenstance"
"alert, watchful, vigilant"
"born on Sunday"
"gift of Yahweh"
"God is gracious (via John → Jack)"
"stoneworker (from Mason)"
"to rule as monarch"
"God has helped"
"modern American coinage, son of Case"
"leatherworker, craftsman"
"manly, strong, courageous"
"one who crafts arrows"
"one who bails, deliverer"
"graceful willow"
"son of David"
Similar sound: These names share phonetic patterns with Ronin — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Japanese origins, giving them the same cultural heritage as Ronin.
Rhythm: Ronin is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.