Tulsa sits next to 4 phonetic neighbors — Elsa, Talsa, and Marsa are the closest matches by sound. Most share Tulsa's Creek/Muscogee-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"old town"
"bright-headed, fair"
"slender, narrow (via Irish Caolinn)"
"little rock"
"princess, beautiful"
"slender, fair"
"who is like God"
"God is my judge"
"royal child of heaven"
"little street, alley"
"woodland clearing"
"ascent, going up"
"brand name (Toyota Camry)"
"reddish-brown, auburn color"
"god of war"
"of the Jenkin family"
"courageous, valiant"
"victorious goddess; one of Durgas names"
"essence of blessings, pure blessing"
"helmeted chief"
"life of Zeus; gift of the gods"
Similar sound: These names share phonetic patterns with Tulsa — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Creek/Muscogee origins, giving them the same cultural heritage as Tulsa.
Rhythm: Tulsa is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.