Arlan sits next to 5 phonetic neighbors — Arlen, Harlan, and Darlan are the closest matches by sound. Most share Arlan's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"pledge, oath"
"small"
"of the crow, raven-haired"
"the Lord saves"
"twin"
"song, joy"
"victory, honor"
"step, stride"
"lawman, legal authority"
"thunder"
"peaceful pledge"
"to thrive, to succeed, prosperous"
"one who deals in coal"
"powerful ruler, brave leader"
"hunter, one who hunts or pursues"
"God is worthy (via Jah prefix)"
"earthworker (as short for George)"
"strengthened by God"
"crow crossing"
"beacon hill"
Similar sound: These names share phonetic patterns with Arlan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Irish origins, giving them the same cultural heritage as Arlan.
Rhythm: Arlan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.