Luigi sits next to 3 phonetic neighbors — Louis, Lewis, and Louie are the closest matches by sound. Most share Luigi's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"famous warrior"
"light, bringer of light"
"of good race, noble"
"relating to Easter, Passover"
"God strengthens"
"three (numeric)"
"from Rome, Roman pilgrim"
"garden of God, orchard"
"light-bearer, bringer of light"
"vigilant guardian"
"brave, strong"
"brave as a lion"
"holding fast, steadfast protector"
"gift of God"
"vigorous, energetic ruler"
"well-born, noble"
"priceless, of inestimable worth"
"of Jove (Jupiter), sky father"
Similar sound: These names share phonetic patterns with Luigi — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Luigi.
Rhythm: Luigi is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.