Which africans? You will have better luck with carnivores than herbivores or omnivores. And probably the #1 roadblock is the fish eating the plants (yes even the carnivores).
Depending on the light and substrate you are willing to provide, anubias and java fern might be #1. And crypts and swords might be #2.
Depending on the light and substrate you are willing to provide, anubias and java fern might be #1. And crypts and swords might be #2.