Zuko sits next to 3 phonetic neighbors — Zuko, Zoro, and Roku are the closest matches by sound. Most share Zuko's Avatar: The Last Airbender-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"fictional Fire Nation prince name"
"son of Colin"
"hollow, cauldron"
"named after the Parisii Gallic tribe"
"shining with glory"
"high ground, elevated place"
"one who builds with stone"
"variant of Devon: from the Devon region"
"surname used as first name"
"modern invented compound name"
"bold, brave, daring"
"powerful leader"
"vineyard, fruitful field"
"the winter season, wet season"
"trout (from the fish's spotted pattern)"
"God is gracious"
"little barrel"
"helper of God"
"God is my light, my flame is Yahweh"
"rock, harbor"
"son of Jack"
Similar sound: These names share phonetic patterns with Zuko — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Avatar: The Last Airbender origins, giving them the same cultural heritage as Zuko.
Rhythm: Zuko is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.