Astor sits next to 4 phonetic neighbors — Astoria, Aspen, and Esther are the closest matches by sound. Most share Astor's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"hawk, bird of prey"
"young servant, attendant to nobility"
"beloved of God"
"Inuit goddess of the sea; ruler of the deep"
"son of the loving one"
"From Laurentum; the bay laurel tree; associated with honor and victory"
"flower; to shine"
"ascent, going up"
"inspiring wonder and awe"
Similar sound: These names share phonetic patterns with Astor — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French origins, giving them the same cultural heritage as Astor.
Rhythm: Astor is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.