Oteria sits next to 3 phonetic neighbors — Victoria, Gloria, and Odessa are the closest matches by sound. Most share Oteria's American-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"creative American coinage"
"energetic, rowdy one"
"pledge, oath"
"branch, shoot (proposed etymology of Nazareth)"
"famous, bright warrior"
"elf ruler (alternative folk etymology via Old English)"
"free one, from the land of the Franks"
"hilltop town"
"grace, favor (from Hannah via Anne)"
"island of Alfsigr (Norse personal name)"
"ascent, rising"
"to fill to excess, satiate"
"renowned fighter"
"island of the queen, named after fictional paradise Califia"
"God is gracious"
"to gladden, make joyful"
Similar sound: These names share phonetic patterns with Oteria — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have American origins, giving them the same cultural heritage as Oteria.
Rhythm: Oteria is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.