Harlowe sits next to 4 phonetic neighbors — Harlow, Marlowe, and Carly are the closest matches by sound. Most share Harlowe's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"army hill"
"goddess, divine"
"burnt meadow clearing"
"new star"
"juniper tree"
"heavenly mist"
"my people, close to God"
"possibly from Sidonia, woman of Sidon"
"beloved, variant of Maria"
"sky and waterfall pool"
"bright, sparkling (phonetic association)"
"beam of light"
"of noble birth"
"lion strength, brave as a lion"
"possibly 'free one of God' (Hawaiian/Hebrew blend)"
"noble natured"
"from the king's wood"
"summer, from Therasia"
"charming, lovable"
"Jay + lake (modern coinage)"
"slender"
Similar sound: These names share phonetic patterns with Harlowe — 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 Harlowe.
Rhythm: Harlowe is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.