Yanil sits next to 4 phonetic neighbors — Yanira, Yanely, and Yanel are the closest matches by sound. Most share Yanil's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious (from Juana/Juanita lineage)"
"teal duck, garganey waterfowl"
"American invented name; possibly related to Tamara (date palm) via ..."
"prosperous, lively (creative blend of Aqua and Aisha)"
"night, dark beauty"
"Twin; one born with another"
"torch, shining light"
"goodness, benevolence, charitable"
"air, melody"
Similar sound: These names share phonetic patterns with Yanil — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Spanish origins, giving them the same cultural heritage as Yanil.
Rhythm: Yanil is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.