Eriksson sits next to 5 phonetic neighbors — Ericson, Erikson, and Harrison are the closest matches by sound. Most share Eriksson's Scandinavian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Erik"
"autumn"
"noble descendant"
"earth, key"
"ever king"
"keeper of treasure"
"one who carries the treasure"
"elf warrior (alternative etymology)"
"short form of Reinhard (pure heart) or Reinier"
"clearing in the forest"
"dove"
"divine bear"
"strong decision-maker"
"Settlement near the well"
"Jehovah is God"
"noble friend, old friend"
Similar sound: These names share phonetic patterns with Eriksson — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse origins, giving them the same cultural heritage as Eriksson.
Rhythm: Eriksson is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.