Randal sits next to 4 phonetic neighbors — Randall, Randy, and Ronald are the closest matches by sound. Most share Randal's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"wolf shield"
"invented name combining familiar American sound elements"
"Mardi Gras parade organization"
"he enlightens"
"son of Dierk (patronymic)"
"man of Rome, from Rome"
"Yahweh is God"
"healer"
"street"
"caiman, crocodilian reptile"
"a days travel; a trip"
"little saint, holy one"
"to flow down, descend"
"superior, first in rank"
"one who prevails"
"short form of Desmond (south Munster, Ireland)"
"enclosed field"
"highland, high ground"
"Roman clan name Horatius (origin uncertain)"
Similar sound: These names share phonetic patterns with Randal — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse Randulfr origins, giving them the same cultural heritage as Randal.
Rhythm: Randal is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.