Jacob sits next to 3 phonetic neighbors — Jake, Jacques, and Jacoby are the closest matches by sound. Most share Jacob's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Supplanter; one who follows at the heel"
"Little hollow; from the little hollow place"
"treasurer, bringer of treasure"
"divine reward"
"pledged, dedicated"
"ancestor's descendants"
"the Lord is my God"
"from Lucania (ancient region of Italy)"
"my God is the Lord, from Elijah"
"supplanter"
"son of the steward"
"may God deliver"
"little fire"
"flowing body of water, stream"
"barrel maker"
"hero of God, man of God"
"strength, dominance"
"tall, imposing one"
"man from Lucania (region of Italy)"
"tiller of the soil, agriculturalist"
"from the castle, place near the ditch"
Similar sound: These names share phonetic patterns with Jacob — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Jacob.
Rhythm: Jacob is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.