Khalid sits next to 3 phonetic neighbors — Walid, Khaled, and Kalid are the closest matches by sound. Most share Khalid's Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"eternal, immortal, everlasting"
"song, nightingale"
"founder, builder (cultural meaning)"
"little fire"
"ruler, leader"
"elder, senior, superior"
"he will enlighten, God shines"
"attainer, one who gains"
"lion"
"ardent lord"
"prosperity, long life, flourishing"
"divine mercy"
"conspicuous, apparent"
"prince, commander"
"ancient, enduring"
"adornment, embellishment"
Similar sound: These names share phonetic patterns with Khalid — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Khalid.
Rhythm: Khalid is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.