Khalil sits next to 4 phonetic neighbors — Khalid, Kalil, and Jamil are the closest matches by sound. Most share Khalil's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"friend of God (theological)"
"letter J, initial name"
"God is gracious (via John/Zane)"
"long-lived, fortunate"
"He will add"
"anointed one"
"pleasant, amusing"
"handsome, beautiful"
"the glorified one"
"father of many nations"
"man, human being"
"ruler, leader"
"dear one of God"
"moon"
"one who is praised"
"beauty, grace, excellence"
"silver, shining"
"growth, abundance"
"nobleman, lord"
Similar sound: These names share phonetic patterns with Khalil — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Islamic tradition origins, giving them the same cultural heritage as Khalil.
Rhythm: Khalil is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.