Siddharth sits next to 4 phonetic neighbors — Siddhartha, Siddhart, and Sidhant are the closest matches by sound. Most share Siddharth's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"one who has accomplished their goal"
"a portion of scripture"
"victory, prosperity"
"victory, divine triumph"
"capable, able, competent"
"falcon of the Guru, brave warrior of the Guru"
"perfect peace, bliss"
"to wander, traveler"
"universal consciousness"
"one with steady wisdom"
"the sun"
"success, the quality of being praised"
"one who rides horses"
"seer, one with divine insight"
"bright, radiant"
"prophet, one who prophesies"
Similar sound: These names share phonetic patterns with Siddharth — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sanskrit origins, giving them the same cultural heritage as Siddharth.
Rhythm: Siddharth is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.