Luke sits next to 4 phonetic neighbors — Luca, Lucas, and Duke are the closest matches by sound. Most share Luke's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"man from Lucania"
"high mountain"
"divine"
"little fire (via Aidan variant)"
"brave boar"
"sea"
"people's champion, victorious"
"appointed by God"
"well-born"
"divine gift"
"from the surname Cauvin"
"God has given"
"rider, equestrian"
"son of the valiant one"
"excellent; unbeatable"
"Yahweh has been gracious"
"God's spear"
"man from Laurentum"
"ruler of the estate"
"sawyer, lumber worker"
"fortunate, good"
Similar sound: These names share phonetic patterns with Luke — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek Loukas referring to Lucania region of Italy origins, giving them the same cultural heritage as Luke.
Rhythm: Luke is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.