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"
"seer, one with divine insight"
"generation, time period"
"sprout, expression"
"a limb of God, bound to God"
"the philosophical principle of unity of self and universe"
"entertaining companion, engaging conversationalist"
"sacred primordial sound"
"victory, prosperity"
"to wander, traveler"
"enchanting, magical"
"all-attractive"
"blown out, extinguished (of desire)"
"success, the quality of being praised"
"call to prayer"
"the northeast direction, the direction of sunrise"
"noble, honorable, of noble birth"
"time; yesterday and tomorrow"
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.