Kumani sits next to 3 phonetic neighbors — Kimani, Kamani, and Kumari are the closest matches by sound. Most share Kumani's Swahili-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Promise; destiny; one who fulfills their promise"
"beautiful"
"blessed, radiant"
"noble, bright"
"noble disposition"
"wise and serene"
"God is my oath, beautiful"
"my brother is a gift"
"who is like God?"
"Possibly derived from Hawaiian lani (sky, heaven, heavenly) combine..."
"honey, sweetness"
"who is like God"
"ford of the hart (stag); deer crossing"
"lake, pool"
Similar sound: These names share phonetic patterns with Kumani — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Swahili origins, giving them the same cultural heritage as Kumani.
Rhythm: Kumani is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.