Alastor sits next to 4 phonetic neighbors — Alistair, Alister, and Castor are the closest matches by sound. Most share Alastor's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"avenger, one who does not forget"
"dweller near the marsh"
"variant of Caleb, meaning faithful"
"rhythm, flow, cadence"
"trustworthy one"
"small forest, wooded grove"
"dove"
"slender one"
"settlement by the ash trees"
"independent, free-spirited"
"glory-power"
"uncle"
"of the Julian family (Jupiter-descended)"
"fortified place, protection"
"brave ruler, strong king"
"pebbly place, bald clearing"
"noble and ready"
"advice, counsel"
"brave as a lion"
"wild, untamed nature"
Similar sound: These names share phonetic patterns with Alastor — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Alastor.
Rhythm: Alastor is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.