Sekou sits next to 3 phonetic neighbors — Seco, Soku, and Ecko are the closest matches by sound. Most share Sekou's Susu/Mandé-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"fighter; warrior"
"free man"
"warrior's settlement, warrior's town"
"placeholder birth name turned given name"
"peace, peaceful one"
"God is salvation"
"beautiful, good"
"God's prince"
"conscience, heart"
"unique invented name, energetic"
"treetop"
"noble and ready, prepared for battle"
"immortal, eternal"
"creative coinage blending Da- prefix and Kai (sea)"
"from the mountain settlement"
"new house, new home"
Similar sound: These names share phonetic patterns with Sekou — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Susu/Mandé origins, giving them the same cultural heritage as Sekou.
Rhythm: Sekou is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.