Espn sits next to 2 phonetic neighbors — Aspen and Essen are the closest matches by sound. Most share Espn's American English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Entertainment and Sports Programming Network"
"To give thanks, to be thankful"
"island meadow"
"friend; ally"
"small, little"
"fisherman"
"weary"
"beloved"
"beautiful rose"
"thornbush clearing"
"She who has the power of the horses"
Similar sound: These names share phonetic patterns with Espn — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have American English origins, giving them the same cultural heritage as Espn.
Rhythm: Espn is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.