Darla sits next to 4 phonetic neighbors — Carla, Marla, and Starla are the closest matches by sound. Most share Darla's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"darling, beloved one"
"open plain"
"compassionate friend, companion"
"home ruler, estate ruler"
"stone of the side"
"short form of Emma or Emilia"
"gentle horse"
"garden of holly"
"wished-for child"
"one who gathers information, explorer"
"rose, flower"
"exalted, noble, sublime"
"violet flower"
"cushion, pillow"
"God is my father"
"from the hay field"
"wise, knowing"
"like sunshine, radiant"
"animal horns"
"freedom, the condition of being free"
"home ruler, estate ruler"
Similar sound: These names share phonetic patterns with Darla — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English 'deorling' origins, giving them the same cultural heritage as Darla.
Rhythm: Darla is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.