Regi sits next to 4 phonetic neighbors — Reggie, Remy, and Ricky are the closest matches by sound. Most share Regi's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"kingly"
"iron strength"
"auspicious, divine blessing"
"Christ-carrier"
"prudent, wise, showing good judgment"
"from the hill settlement, dweller by the downs"
"powerful counsel"
"yellow-haired, golden"
"lion-hearted"
Similar sound: These names share phonetic patterns with Regi — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Regi.
Rhythm: Regi is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.