Hollie sits next to 4 phonetic neighbors — Holly, Mollie, and Polly are the closest matches by sound. Most share Hollie's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"holly tree, evergreen plant"
"beloved, wished-for child"
"unique modern coinage"
"short form of Vanessa (butterfly)"
"star, stars"
"strength, power"
"modern invented name"
"black, dark-haired"
"invented/unique"
"gift of God (if traced to Penelope's roots)"
"prickly bush bearing roses"
"flowing brightness, luminous"
"from Britain, a Briton"
"purity, beauty"
"from the lake land"
"Ireland"
"whole, universal, entire"
"life, living"
"safe harbor, place of refuge"
"grace, favor (from Ana/Hannah)"
Similar sound: These names share phonetic patterns with Hollie — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Hollie.
Rhythm: Hollie is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.