Thor sits next to 2 phonetic neighbors — Tor and Thore are the closest matches by sound. Most share Thor's Norse-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"thunder"
"one who heals"
"God is salvation (via Joshua/Hebrew connection)"
"fire of Yahweh"
"modern coinage inspired by Owen/Cowan"
"conquering, victorious"
"horseman, cavalryman"
"thankful"
"from Laurentum, laurel"
"from Kashmir, the Himalayan paradise"
"of the Titans, giant"
"son of Hans (John)"
"thunder, of Thor"
"healer"
"brilliant, shining"
"land by the road"
"divine discernment"
"connected to healing arts"
"high, enlightened"
"rescuer, redeemer"
Similar sound: These names share phonetic patterns with Thor — 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 Thor.
Rhythm: Thor is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.