Arillia sits next to 4 phonetic neighbors — Aurelia, Ariel, and Amelia are the closest matches by sound. Most share Arillia's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"golden"
"divine, heavenly"
"yew tree"
"eagle nobility"
"beloved, wished-for child"
"brilliance, radiance, splendor"
"wagon driver, path maker"
"free one"
"good lance, noisy (Welsh root)"
"song of joy"
"prophetess, judge"
"grace"
"beginning, origin, creation"
"sweet"
Similar sound: These names share phonetic patterns with Arillia — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin aureus via Aurelia origins, giving them the same cultural heritage as Arillia.
Rhythm: Arillia is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.