Arjun sits next to 4 phonetic neighbors — Aryan, Arun, and Aryan are the closest matches by sound. Most share Arjun's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"white, clear, bright"
"praiseworthy, laudable"
"praiseworthy, highly praised"
"to rejoice, joyful"
"worthy of the highest praise"
"one who sees clearly"
"pure, without blemish"
"song, nightingale"
"God will add, God will increase"
"one deserving of praise"
"lion"
"friend of God (theological)"
"beauty, grace"
"slave of Allah"
"peaceful, tranquil sound"
"he will sing"
Similar sound: These names share phonetic patterns with Arjun — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sanskrit origins, giving them the same cultural heritage as Arjun.
Rhythm: Arjun is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.