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"
"diminutive of Scott"
"strength, vigor"
"bright settlement, day town"
"lord of the northeast, associated with Lord Shiva"
"tall like a palm tree"
"of Mars, warlike"
"powerful ruler"
"defender of men"
"sun"
"from the Adriatic region"
"brave, heroic, courageous"
"stony meadow"
"to love"
"joy, laughter"
"beloved (from David)"
"sea"
"sky father, divine sky"
"uncertain, possibly Norse or Welsh origin"
"bold and modern (cultural meaning)"
"perfect, unblemished"
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.