Dolan sits next to 3 phonetic neighbors — Dylan, Nolan, and Dolan are the closest matches by sound. Most share Dolan's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"descendant of the dark challenger"
"possibly from Celtic 'avon' (river)"
"Wealthy, prosperous warrior"
"crowned with laurel, victorious"
"God is beautiful"
"thankful, God has heard"
"crowned with laurel, laurel bearer"
"eighth-born lord (Latin root interpretation)"
"modern invented name"
"red king"
"from Laurentum (laurel city)"
"Holy hill, place of spiritual ascent"
"dove"
"valley of willows"
"eagle, nobleman"
"peaceful power"
"cause and effect, cosmic justice"
"little one, shapely"
"of Mars, warlike"
"God has remembered"
"variant of Braylen or Graylen"
Similar sound: These names share phonetic patterns with Dolan — 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 Dolan.
Rhythm: Dolan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.