Connie sits next to 4 phonetic neighbors — Conny, Bonnie, and Ronnie are the closest matches by sound. Most share Connie's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"steadfast, constant, faithful"
"courageous, valiant"
"diminutive of Mary"
"God is my strength"
"light, splendor, radiance"
"dew of heaven, morning dew"
"pearl"
"playful, joyful (folk etymology)"
"precious, of highest value"
"lovely, beautiful beloved"
"from Lassy (Norman place name)"
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"star, stars"
"heavenly, elevated"
"poem, verse"
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"consecrated, sacred"
Similar sound: These names share phonetic patterns with Connie — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Connie.
Rhythm: Connie is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.