Sunny sits next to 3 phonetic neighbors — Sonny, Suni, and Benny are the closest matches by sound. Most share Sunny's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"bright, full of sunshine"
"belonging to Mars, the war god"
"tall like a palm tree"
"the Lord remembers"
"son of the red warrior"
"savior, rescuer"
"tournament fighter"
"lowlands"
"Frenchman, man from France"
"open, beginning"
"elder, senior, superior"
"long stone settlement"
"short form of Asher (happy, blessed)"
"olive tree"
"son of the victor"
"little ancient one"
"sage, seer, inspired poet"
"Trent's town, settlement on the Trent"
"shield wolf, protector"
"the number seven, representing luck and completeness"
Similar sound: These names share phonetic patterns with Sunny — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have English origins, giving them the same cultural heritage as Sunny.
Rhythm: Sunny is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.