Tamka sits next to 3 phonetic neighbors — Tamika, Tamara, and Tameka are the closest matches by sound. Most share Tamka's African-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Twin; one born with another"
"teal duck, garganey waterfowl"
"night, dark beauty"
"prosperous, lively (creative blend of Aqua and Aisha)"
"pure, honest, without deceit"
"bright, radiant"
"most holy, very pure"
"goodness, benevolence, charitable"
"birthday of the Lord, born at Christmas"
"American invented name; possibly related to Tamara (date palm) via ..."
"Caribbean variant of Jan/Jean lineage"
Similar sound: These names share phonetic patterns with Tamka — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have African origins, giving them the same cultural heritage as Tamka.
Rhythm: Tamka is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.