Chi sits next to 4 phonetic neighbors — Kai, Ky, and Chee are the closest matches by sound. Most share Chi's Chinese cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"vital energy, life force"
"California (place name nickname)"
"God is salvation"
"sun, throne"
"round, circular, complete"
"dark one"
"constant, steadfast"
"victor's crown"
"gentle, tame"
"gift of healing"
"forethought, foresight"
"sky deity, rain spirit"
"virtuous, worthy, talented"
"victory of the people"
"king, emperor"
Similar sound: These names share phonetic patterns with Chi — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Chinese (Qi) origins, giving them the same cultural heritage as Chi.
Rhythm: Chi is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.