Ridhi sits next to 4 phonetic neighbors — Riddhi, Riti, and Richi are the closest matches by sound. Most share Ridhi's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"prosperity, good fortune, wealth"
"fish"
"boundless, immeasurable"
"little girl"
"divine grace, speed"
"divine grace, gift"
"wisdom (via Sophia)"
"fragrant one, honey bee"
"bloom, flowering season"
"free as the wind"
"high, exalted"
"shining, brilliant, radiant"
"noble, royal"
"diamond, precious gem"
"belonging to Shiva, consort of Shiva (Parvati)"
"continuous remembrance"
"divine, goddess-like"
"to walk with graceful pride, dignified swaying gait"
"one who has a father (honorific)"
"compensation, divine gift"
Similar sound: These names share phonetic patterns with Ridhi — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sanskrit origins, giving them the same cultural heritage as Ridhi.
Rhythm: Ridhi is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.