Giovanni sits next to 4 phonetic neighbors — John, Gianni, and Giovanni are the closest matches by sound. Most share Giovanni's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Italian form of John, gift of God"
"heavenly being, celestial guardian"
"lover of hounds"
"son of Brice"
"one who shoots with a bow and arrow"
"forest, woods"
"son of Grey"
"round hill"
"son of the hood/hooded man"
"from Grantham"
"God is gracious"
"dark one, black"
"from the Stetson hat-making family"
"church official overseeing ten"
"raven hill"
"son of the home ruler"
"strong lord, powerful chief"
"farmer; earth worker; tiller of the soil"
"manly, brave"
"magic dignity"
"whole, universal power"
Similar sound: These names share phonetic patterns with Giovanni — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Giovanni.
Rhythm: Giovanni is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.