Jagger sits next to 3 phonetic neighbors — Trigger, Swagger, and Dagger are the closest matches by sound. Most share Jagger's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"peddler, pack-horse driver"
"youthful, young one"
"bringer of treasure (gift-bearer)"
"fine, elegant"
"gift, wealthy possessor"
"barn dweller, farm settlement"
"bald (short for Calvin from Latin Calvinus)"
"son of fire"
"carried by God"
"first zodiac sign, new beginnings"
"God is gracious (via John)"
"Yahweh has shown favor"
"stream, small brook"
"son of Walter"
"lawful, true to one's pledges"
"from Sebaste"
"wood, forest"
"slender"
"hollow, ravine"
"western enclosure"
"God supports, Yahweh supports"
Similar sound: These names share phonetic patterns with Jagger — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Jagger.
Rhythm: Jagger is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.