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"
"scholar"
"invented blend name, no classical meaning"
"brook, small stream"
"short form of Benedict: blessed"
"dweller near the heath"
"from the place Brodie in Moray, Scotland"
"divine reward (alternate interpretation)"
"love, passion transformed"
"from the rye field"
"woodland"
"wise counselor"
"may God give increase"
"third-born or third generation"
"large gun, artillery piece"
"true, faithful"
"maker of cases or boxes"
"tall stone"
"well-born, of noble birth"
"ash tree settlement"
"from the western settlement"
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.