Radha sits next to 3 phonetic neighbors — Rada, Sarada, and Nadia are the closest matches by sound. Most share Radha's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"success, prosperity"
"one who has attained bliss"
"the bringer of new things"
"kindness, grace, God's mercy"
"gift, God is salvation"
"desire, taste, beauty"
"the first, the beginning, primordial"
"voice, melody, speech"
"beauty, divine grace"
"musical note, tone"
"singer"
"garden, grove"
"without fault, blameless"
"delightful, beautiful"
"first rays of dawn"
"color, hue"
"glorious, famous, bearer of renown"
Similar sound: These names share phonetic patterns with Radha — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sanskrit origins, giving them the same cultural heritage as Radha.
Rhythm: Radha is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.