Jimmie sits next to 3 phonetic neighbors — Jimmy, Jamie, and Timmy are the closest matches by sound. Most share Jimmie's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"supplanter"
"from the Leyden region"
"estate on the River Aire"
"father of strong men"
"runner, messenger"
"mortal being"
"home ruler"
"one who tells, narrator, counter of money"
"son of Myer/Meyer"
"carp fish (symbolic)"
"glorious power"
"son of Rip (surname derivative)"
"little poet; philosopher"
"island"
"hare's meadow or mound"
"son of the devotee of Saint Fillan"
"of the Claudian family, lame"
"bearer of Christ"
"guardian, watchman (from Samaria)"
"from Tracy, a Norman place"
"of the highest power or authority"
Similar sound: These names share phonetic patterns with Jimmie — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew Yaakov via James origins, giving them the same cultural heritage as Jimmie.
Rhythm: Jimmie is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.