Gilberto sits next to 3 phonetic neighbors — Alberto, Roberto, and Rigoberto are the closest matches by sound. Most share Gilberto's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"bright pledge"
"loved by God"
"cross"
"God is gracious"
"doubly fruitful"
"from Laurentum, of the laurel"
"famous wolf"
"eighth"
"friend, darling"
"bearer of Christ"
"battle genius"
"new house"
"my God has helped"
"ruler of the home"
"love of God"
"to light up, illuminate"
"mountain"
"mighty peace"
"flower"
"made by God"
Similar sound: These names share phonetic patterns with Gilberto — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Gilberto.
Rhythm: Gilberto is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.