Barley sits next to 4 phonetic neighbors — Barclay, Harley, and Charlie are the closest matches by sound. Most share Barley's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"barley grain, of the barley field"
"place of destruction, the abyss"
"Water of life; the distilled spirit drink"
"Possibly lion (from Levon/Leon) or a modern creative invention"
"crooked nose (distinctive feature)"
"fate, destiny, one's allotted share"
"little ruler"
"brave lion, lion-strong"
Similar sound: These names share phonetic patterns with Barley — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English baerlic origins, giving them the same cultural heritage as Barley.
Rhythm: Barley is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.