Arjan sits next to 4 phonetic neighbors — Arjun, Adrian, and Aryan are the closest matches by sound. Most share Arjan's Dutch-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"white, silver"
"the kind one"
"scholar"
"one who guards treasure"
"good person, one like a sage"
"short form of Kipling or Christopher"
"sky, heaven, space"
"hollow land (alternative)"
"rich friend"
"flower"
"light, knowledge"
"strong and excellent"
"ruler of the people"
"dawn, morning light"
"wish, longing, desire"
Similar sound: These names share phonetic patterns with Arjan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sanskrit (Arjuna) origins, giving them the same cultural heritage as Arjan.
Rhythm: Arjan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.