Shirlee sits next to 4 phonetic neighbors — Shirley, Shirleen, and Charley are the closest matches by sound. Most share Shirlee's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"bright meadow, shire clearing"
"beloved, gracious (variant of Erasmus)"
"from the alder grove"
"power, might"
"noble family origin from Normandy"
"ash tree settlement (variant of Ashton)"
"battle, warrior"
"promontory above a pool"
"spear"
"dove (the bird)"
"of the Flavian family"
"one who crosses; toll collector at a crossing"
Similar sound: These names share phonetic patterns with Shirlee — 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 Shirlee.
Rhythm: Shirlee is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.