Eagan sits next to 4 phonetic neighbors — Egan, Eagan, and Keegan are the closest matches by sound. Most share Eagan's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"little fire, born of fire"
"river"
"dear little one, devotee"
"young warrior"
"little bay, small inlet"
"possibly little duck, Gaelic diminutive"
"barn for cows, cowshed"
"ancient, enduring"
"seal pup"
"red-haired counselor"
"slender, narrow"
"brave in battle, vigilant"
"one who protects"
"from Erroll, Scotland"
"from the narrow forest"
"visionary, seer"
"elm (river or settlement by elm trees)"
"son of the servant of John"
Similar sound: These names share phonetic patterns with Eagan — 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 Eagan.
Rhythm: Eagan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.