Dillon sits next to 4 phonetic neighbors — Dylan, Dillan, and Dylon are the closest matches by sound. Most share Dillon's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"great tide, son of the sea"
"brave in battle, vigilant"
"remembered by Yahweh"
"from Denmark, a Dane"
"dealer in provisions and supplies"
"noble eagle (adal + aro)"
"heart brave"
"mind, intellect, spirit"
"noble elder"
"home power, ruler of work"
"new"
"Yahweh has created"
"joy, happiness"
"heathland, open moorland"
"great forest, eagle valley"
"song, singing bird"
"famous spear"
"admirable, worthy"
"peddler, pack-horse driver"
"king's meadow, king's clearing"
Similar sound: These names share phonetic patterns with Dillon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Welsh origins, giving them the same cultural heritage as Dillon.
Rhythm: Dillon is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.