Doyle sits next to 4 phonetic neighbors — Dale, Kyle, and Boyd are the closest matches by sound. Most share Doyle's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"dark foreigner; dark stranger"
"fire and blood (fictional Valyrian)"
"wise one (from connection to sacred well)"
"from the valley"
"wealthy, possessing good"
"near the barns, barn keeper"
"dawn, morning"
"craftsman, carpenter"
"strong as a wild boar"
"an extremely large, uncountable number; boundless"
"one who follows"
"noble estate"
Similar sound: These names share phonetic patterns with Doyle — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Doyle.
Rhythm: Doyle is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.