Raj sits next to 4 phonetic neighbors — Raj, Raj, and Raz are the closest matches by sound. Most share Raj's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"king, ruler"
"lotus flower"
"man, virtuous person"
"spiritual wisdom"
"light, brightness"
"the musical note Re (second note in sargam)"
"powerful warrior"
"son of Kartikey, the god of war"
"courage, bravery"
"joy, song of life"
"morning light, first rays"
"beloved portion"
"health, vigor, life-force"
"sacred, blessed with talent"
"free-flowing, vital energy"
"end of the Vedas (the Upanishads)"
"victorious hero"
Similar sound: These names share phonetic patterns with Raj — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sanskrit origins, giving them the same cultural heritage as Raj.
Rhythm: Raj is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.