lpetrich
Contributor
Niger-Congo -- Atlantic-Congo -- Volta-Congo -- Benue-Congo -- Bantoid -- Southern Bantoid -- Bantu
Some linguists reconstruct noun classes for Proto-Niger-Congo, though the family has a lot of variety in them.
A survey of Niger-Congo noun class agreement systems -- Hepburn-Gray.pdf
Gives these examples:
Otoro ethnonyms:
gwu-toro "Toro person", li-toro "Toro people", o-toro "Toro land", dhi-toro "Toro language"
Baïnounk Gubëeher botanical names:
so-dooma "kaba tree", bu-domma "kaba-tree fruit", ja-dooma "kaba-tree leaves", tin-dooma "kaba-tree sap"
Otoro is one of the
Talodi-Heiban is likely in Atlantic-Congo.
Niger-Congo languages - Widespread characteristics of Niger-Congo languages | Britannica
The number of noun classes varies from language to language. Within the Atlantic branch, for instance, the number of noun classes varies from 3 to nearly 40. In the Gur branch 11 classes are most commonly found. In Bantu languages 12 to 15 noun classes frequently occur, and early Bantu, as reconstructed by scholars, is thought to have had some 23 noun classes.
Atlantic = Atlantic languages | African language | Britannica =
Gur is
So all these examples are Atlantic-Congo, and some are restricted further, in Volta-Congo, Benue-Congo, and Bantu.