Holsey sits next to 4 phonetic neighbors — Halsey, Hollis, and Horsey are the closest matches by sound. Most share Holsey's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from the holly clearing"
"all-seeing, vigilant"
"God is my help"
"associated with the loyal collie sheepdog"
"lord, guardian"
"brilliant fame"
"Friend, ally"
Similar sound: These names share phonetic patterns with Holsey — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English holegn + leah origins, giving them the same cultural heritage as Holsey.
Rhythm: Holsey is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.