Serigne sits next to 3 phonetic neighbors — Serene, Serine, and Serin are the closest matches by sound. Most share Serigne's Wolof/Arabic-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"religious leader, marabout"
"island, peninsula"
"little Hasan, very good"
"supreme, exalted"
"gift from God"
"God is my help"
"sandalwood tree"
"a warner, one who cautions"
"light, illumination"
"black, dark-complexioned"
"morning star, night visitor"
"one who rules"
"populous, thriving"
"owner, master, possessor"
"West African form of Abu Bakr"
"glorify the Almighty"
"young man of the army"
"gate of paradise, lush"
"goodness, virtue, the best"
"worshipper, devotee"
Similar sound: These names share phonetic patterns with Serigne — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Wolof/Arabic origins, giving them the same cultural heritage as Serigne.
Rhythm: Serigne is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.