Alister sits next to 4 phonetic neighbors — Alistair, Alexander, and Alastor are the closest matches by sound. Most share Alister's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"defender of men"
"jet black, black gemstone"
"helmeted chief; armored head"
"descendant of Aodh (fire)"
"from Kent, the English county"
"fair, attractive"
"dark-haired"
"champion"
"sculptor, craftsman"
"rocky cliff, crag"
"gift"
"brown, chief"
"son of Gilbert, son of Gib"
"brave ruler, strong king"
"woodland clearing used for hunting"
"ancient, enduring, long-lived"
"court musician, entertainer"
"young dog, whelp (strength and loyalty)"
"crooked hill"
Similar sound: These names share phonetic patterns with Alister — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek via Gaelic origins, giving them the same cultural heritage as Alister.
Rhythm: Alister is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.