Krissi sits next to 4 phonetic neighbors — Chrissy, Crissy, and Kristy are the closest matches by sound. Most share Krissi's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"follower of Christ, Christian"
Similar sound: These names share phonetic patterns with Krissi — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Krissi.
Rhythm: Krissi is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.