Thorin sits next to 4 phonetic neighbors — Dorin, Corin, and Florin are the closest matches by sound. Most share Thorin's Scandinavian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"bold, daring (thunder-bold)"
"owner, possessor"
"famous through noble birth"
"summit, top"
"flax, flaxen-haired"
"royal power, royal ruler"
"famous army, warrior people"
"deer-friend, divine spear"
"fifth-born child"
"vigilant in battle"
"greatest town"
"where the sun sets"
"bright settlement, day town"
"free man, warrior"
"variant of Lakin: small play, sport"
"oracle, mouth of the serpent"
"modern invented name, possibly 'sincere air' or 'great river'"
"God has exalted (Jah + kai)"
"worth, worthiness"
"ravager, one who destroys"
Similar sound: These names share phonetic patterns with Thorin — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse origins, giving them the same cultural heritage as Thorin.
Rhythm: Thorin is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.